0 Survivin mediates targeting of the chromosomal, otherFeat=[]-->, belongsTo=title 1 passenger complex to the centromere and midbody, otherFeat=[]-->, belongsTo=title 2 Gerben Vaderw,Jos J.W. Kauw,Rene? H. Medemaw & Susanne M.A. Lens+w, otherFeat=[]-->, belongsTo=parrnote 3 Division of Molecular Biology, Netherlands Cancer Institute, Amsterdam, The Netherlands, otherFeat=[]-->, belongsTo=title 4 The chromosomal passenger complex (CPC) coordinates chromo-, otherFeat=[]-->, belongsTo=parr 5 somal and cytoskeletal events of mitosis. The enzymatic core of, otherFeat=[]-->, belongsTo=parr 6 this complex (Aurora-B) is guided through the mitotic cell by its, otherFeat=[]-->, belongsTo=parr 7 companion chromosomal passenger proteins, inner centromere, otherFeat=[]-->, belongsTo=parr 8 protein (INCENP), Survivin and Borealin/Dasra-B, thereby, otherFeat=[]-->, belongsTo=parr 9 allowing it to act at the right place at the right time. Here, we, otherFeat=[]-->, belongsTo=parr 10 addressed the individual contributions of INCENP, Survivin and, otherFeat=[]-->, belongsTo=parr 11 Borealin to the proper functioning of this complex. We show that, otherFeat=[]-->, belongsTo=parr 12 INCENP has an important role in stabilizing the complex, and, otherFeat=[]-->, belongsTo=parr 13 that Borealin acts to promote binding of Survivin to INCENP., otherFeat=[]-->, belongsTo=parr 14 Importantly, when Survivin is directly fused to INCENP, this, otherFeat=[]-->, belongsTo=parr 15 hybrid can restore CPC function at the centromeres and midbody,, otherFeat=[]-->, belongsTo=parr 16 even in the absence of Borealin and the centromere-targeting, otherFeat=[]-->, belongsTo=parr 17 domain of INCENP. Thus, Survivin is an important mediator of, otherFeat=[]-->, belongsTo=parr 18 centromere and midbody docking of Aurora-B during mitosis., otherFeat=[]-->, belongsTo=parr 19 Keywords: cytokinesis; spindle checkpoint, otherFeat=[]-->, belongsTo=parr 20 EMBO reports (2006) 7, 85?92. doi:10.1038/sj.embor.7400562, otherFeat=[]-->, belongsTo=parrnote 21 INTRODUCTION, otherFeat=[]-->, belongsTo=title 22 Proper mitosis requires accurate nuclear division, followed by, otherFeat=[]-->, belongsTo=parr 23 cytoplasmic partitioning into two daughter cells during cyto-, otherFeat=[]-->, belongsTo=parr 24 kinesis. Nuclear division is monitored by the spindle assembly, otherFeat=[]-->, belongsTo=parr 25 checkpoint (SAC), which is an intrinsic cell-cycle checkpoint that, otherFeat=[]-->, belongsTo=parr 26 prevents the onset of anaphase until all sister chromatids have, otherFeat=[]-->, belongsTo=parr 27 attained proper attachment to the mitotic spindle (Nicklas, 1997)., otherFeat=[]-->, belongsTo=parr 28 To satisfy this checkpoint, kinetochores of paired sister chromatids, otherFeat=[]-->, belongsTo=parr 29 have to attach in a bipolar manner, creating tension (Tanaka,, otherFeat=[]-->, belongsTo=parr 30 2002). Aurora-B kinase is essential to resolve naturally occurring, otherFeat=[]-->, belongsTo=parr 31 monopolar or syntelic microtubule?kinetochore attachments, otherFeat=[]-->, belongsTo=parr 32 (Tanaka et al, 2002; Lampson et al, 2004), and to communicate, otherFeat=[]-->, belongsTo=parr 33 a lack of bipolarity (that is, tension) to the core SAC (Biggins &, otherFeat=[]-->, belongsTo=parr 34 Murray, 2001; Lens & Medema, 2003). Additionally, in several, otherFeat=[]-->, belongsTo=parr 35 organisms, interference with Aurora-B leads to a failure of, otherFeat=[]-->, belongsTo=parr 36 cytokinesis (Kaitna et al, 2000; Severson et al, 2000; Ditchfield, otherFeat=[]-->, belongsTo=parr 37 et al, 2003; Hauf et al, 2003)., otherFeat=[]-->, belongsTo=parr 38 Aurora-B acts together with Survivin, inner centromere protein, otherFeat=[]-->, belongsTo=parr 39 (INCENP) and Borealin/Dasra-B (hereafter referred to as Borealin)., otherFeat=[]-->, belongsTo=parr 40 These proteins physically interact and show a typical chromo-, otherFeat=[]-->, belongsTo=parr 41 somal passenger localization pattern during mitosis--at the inner, otherFeat=[]-->, belongsTo=parr 42 centromere in (pro)metaphase, on the central spindle during, otherFeat=[]-->, belongsTo=parr 43 anaphase and at the midbody during cytokinesis (Vagnarelli &, otherFeat=[]-->, belongsTo=parr 44 Earnshaw, 2004). Interference with Survivin, INCENP or Borealin, otherFeat=[]-->, belongsTo=parr 45 function disrupts Aurora-B localization and leads to similar mitotic, otherFeat=[]-->, belongsTo=parr 46 defects, as observed after interference with Aurora-B function, otherFeat=[]-->, belongsTo=parr 47 (Vagnarelli & Earnshaw, 2004, and references therein). Aurora-B is, otherFeat=[]-->, belongsTo=parr 48 activated at the G2?M transition and remains active until mitotic, otherFeat=[]-->, belongsTo=parr 49 exit (Yasui et al, 2004). Thus, it is likely that the specific functions, otherFeat=[]-->, belongsTo=parr 50 of Aurora-B are mainly determined by its dynamic localization, otherFeat=[]-->, belongsTo=parr 51 pattern. Until now, INCENP has been proposed to be the targeting, otherFeat=[]-->, belongsTo=parr 52 module of the complex (Ainsztein et al, 1998), but specific, otherFeat=[]-->, belongsTo=parr 53 functions for Survivin and Borealin in the chromosome passenger, otherFeat=[]-->, belongsTo=parr 54 complex (CPC) have yet to be determined., otherFeat=[]-->, belongsTo=parr 55 RESULTS AND DISCUSSION, otherFeat=['U']-->, belongsTo=title 56 An RNAi-complementation to study CPC function, otherFeat=[]-->, belongsTo=title 57 We developed an INCENP RNA interference (RNAi) complemen-, otherFeat=[]-->, belongsTo=parr 58 tation system to study the role of INCENP in the CPC. Endogenous, otherFeat=[]-->, belongsTo=parr 59 INCENP was knocked down by vector-driven short interfering, otherFeat=[]-->, belongsTo=parr 60 RNA (siRNA; Fig 1A; supplementary Fig 1A?C online) and cells, otherFeat=[]-->, belongsTo=parr 61 were reconstituted with an INCENP complementary DNA, otherFeat=[]-->, belongsTo=parr 62 harbouring two silent mutations in the siRNA-targeting region,, otherFeat=[]-->, belongsTo=parr 63 rendering it insensitive to the siRNA (Lens et al, 2003). INCENP-, otherFeat=[]-->, belongsTo=parr 64 depleted cells showed the typical `chromosome passenger, otherFeat=[]-->, belongsTo=parr 65 deficiency' phenotype: defects in chromosome alignment and, otherFeat=[]-->, belongsTo=parr 66 segregation, and a failure to undergo cytokinesis (supplementary, otherFeat=[]-->, belongsTo=parr 67 Fig 1A?C online; Honda et al, 2003). Additionally, Aurora-B and, otherFeat=[]-->, belongsTo=parr 68 BubR1 were mislocalized, and the INCENP-depleted cells failed, otherFeat=[]-->, belongsTo=parr 69 to maintain an active SAC in response to Taxol (supplementary, otherFeat=[]-->, belongsTo=parr 70 Fig 1B,D,E online). All these mitotic defects could be reverted, otherFeat=[]-->, belongsTo=parr 71 by expression of a full-length INCENP containing two silent, otherFeat=[]-->, belongsTo=parr 72 mutations (VSV?INCENP-sil; Figs 1C?E,2F; supplementary, otherFeat=[]-->, belongsTo=parr 73 Fig 2B,C online; for INCENP constructs used, see Fig 4A),, otherFeat=[]-->, belongsTo=parr 74 confirming the specificity of the siRNA and the functionality of, otherFeat=[]-->, belongsTo=parr 75 the complementation approach., otherFeat=[]-->, belongsTo=parr 76 Received 27 May 2005; revised 20 September 2005; accepted 21 September 2005;, otherFeat=[]-->, belongsTo=parrnote 77 published online 21 October 2005, otherFeat=[]-->, belongsTo=parrnote 78 +Corresponding author. Tel: ? 3130 253 9728; Fax: ? 3130 253 8479;, otherFeat=[]-->, belongsTo=parrnote 79 E-mail: s.m.a.lens@med.uu.nl, otherFeat=[]-->, belongsTo=parrnote 80 Division of Molecular Biology, Netherlands Cancer Institute, Plesmanlaan 21, 1066 CX, otherFeat=[]-->, belongsTo=parrnote 81 Amsterdam, The Netherlands, otherFeat=[]-->, belongsTo=parrnote 82 wPresent address: Department of Medical Oncology, University Medical Center,, otherFeat=[]-->, belongsTo=parrnote 83 Str. 2.103 Universiteitsweg 100, 3584 CG Utrecht, The Netherlands, otherFeat=[]-->, belongsTo=parrnote 84 &2006 EUROPEAN MOLECULAR BIOLOGY ORGANIZATION, otherFeat=[]-->, belongsTo=nota_cab_pie 85 EMBO reports VOL 7 | NO 1 | 2006, otherFeat=[]-->, belongsTo=nota_cab_pie 86 scientificreport, otherFeat=[]-->, belongsTo=title 87 scientific report, otherFeat=[]-->, belongsTo=title 88 85, otherFeat=[]-->, belongsTo=nota_cab_pie 89 CPC formation is crucial for protein stability, otherFeat=[]-->, belongsTo=title 90 In line with earlier observations (Honda et al, 2003), total protein, otherFeat=[]-->, belongsTo=parr 91 levels of Aurora-B and Survivin were significantly reduced after, otherFeat=[]-->, belongsTo=parr 92 INCENP depletion (Fig 1A). This reduction was interpreted as an, otherFeat=[]-->, belongsTo=parr 93 indirect consequence of a failed cell division followed by a cell-, otherFeat=[]-->, belongsTo=parr 94 cycle arrest in a tetraploid G1 state (Honda et al, 2003). However,, otherFeat=[]-->, belongsTo=parr 95 we found that INCENP-depleted cells already failed to accumulate, otherFeat=[]-->, belongsTo=parr 96 these proteins during passage through G2 (Fig 1B). Moreover,, otherFeat=[]-->, belongsTo=parr 97 mitotic cells lacking INCENP also showed reduced Aurora-B and, otherFeat=[]-->, belongsTo=parr 98 Survivin levels (Fig 1B,H, lane 2), which indicates that the effect, otherFeat=[]-->, belongsTo=parr 99 of INCENP depletion on protein stability is more direct., otherFeat=[]-->, belongsTo=parr 100 By introducing different INCENP truncation mutants into, otherFeat=[]-->, belongsTo=parr 101 INCENP-depleted cells, we could show that a mutant lacking, otherFeat=[]-->, belongsTo=parr 102 the amino-terminal `centromere-targeting' domain (VSV?, otherFeat=[]-->, belongsTo=parr 103 INCENP47?920-sil; Fig 4A) restored Aurora-B levels, but failed, otherFeat=[]-->, belongsTo=parr 104 to stabilize Survivin (Fig 1G, lane 4). In line with previous, otherFeat=[]-->, belongsTo=parr 105 observations (Ainsztein et al, 1998), this mutant failed to, otherFeat=[]-->, belongsTo=parr 106 concentrate at centromeres during prometaphase and to transfer, otherFeat=[]-->, belongsTo=parr 107 to the midbody following the onset of anaphase (supplementary, otherFeat=[]-->, belongsTo=parr 108 Fig 2B,C online). Consequently, this mutant was unable to restore, otherFeat=[]-->, belongsTo=parr 109 a SAC-mediated arrest in response to Taxol and to overcome the, otherFeat=[]-->, belongsTo=parr 110 cytokinesis defect in INCENP-depleted cells (Fig 1D,E). Because of, otherFeat=[]-->, belongsTo=parr 111 the presence of the carboxy-terminal Aurora-B interaction domain, otherFeat=[]-->, belongsTo=parr 112 (IN-box; Adams et al, 2000), INCENP47?920-sil was able to bind to, otherFeat=[]-->, belongsTo=parr 113 Aurora-B. In contrast, this truncation mutant failed to interact with, otherFeat=[]-->, belongsTo=parr 114 Survivin (Fig 1F, lane 3). Conversely, a construct expressing only, otherFeat=[]-->, belongsTo=parr 115 the first N-terminal 47 amino acids of INCENP (INCENP1?47;, otherFeat=[]-->, belongsTo=note 116 Fig 4A) and thus harbouring the centromere-localization domain, otherFeat=[]-->, belongsTo=parr 117 was able to bind to Survivin (Fig 1F, lane 4), but failed to stabilize, otherFeat=[]-->, belongsTo=parr 118 it (Fig 1G, lane 5). Thus, this domain is both necessary and, otherFeat=[]-->, belongsTo=parr 119 sufficient for interaction with Survivin, but the presence of Aurora-B, otherFeat=[]-->, belongsTo=parr 120 in the complex may be needed for stabilization of Survivin., otherFeat=[]-->, belongsTo=parr 121 Interestingly, Survivin is an in vivo substrate of Aurora-B, otherFeat=[]-->, belongsTo=parr 122 (Wheatley et al, 2004), but whether this phosphorylation affects, otherFeat=[]-->, belongsTo=parr 123 protein stability is unknown. In contrast, the presence of Survivin, otherFeat=[]-->, belongsTo=parr 124 in the complex was not essential to stabilize Aurora-B, because we, otherFeat=[]-->, belongsTo=parr 125 found that a complex of Aurora-B and a truncated INCENP,, otherFeat=[]-->, belongsTo=parr 126 although lacking Survivin, could exist (Fig 1F,G). However,, otherFeat=[]-->, belongsTo=parr 127 whereas Aurora-B protein levels could be restored by expression, otherFeat=[]-->, belongsTo=parr 128 of INCENP47?920-sil, phosphorylation of serine-10 Histone-H3, otherFeat=[]-->, belongsTo=parr 129 in mitotic INCENP-depleted cells remained impaired (Fig 1H,, otherFeat=[]-->, belongsTo=parr 130 lane 4). Thus, stabilization of Aurora-B by INCENP47?920-sil is not, otherFeat=[]-->, belongsTo=parr 131 sufficient to mediate Histone-H3 phosphorylation. This suggests, otherFeat=[]-->, belongsTo=parr 132 that mitotic phosphorylation of Histone-H3 on serine-10 by, otherFeat=[]-->, belongsTo=parr 133 Aurora-B requires either the direct presence of Survivin in the, otherFeat=[]-->, belongsTo=parr 134 complex or centromeric localization of the kinase., otherFeat=[]-->, belongsTo=parr 135 Survivin mediates mitotic localization of the CPC, otherFeat=[]-->, belongsTo=title 136 Although INCENP contains a highly conserved `centromere-, otherFeat=[]-->, belongsTo=parr 137 targeting' domain in its N-terminus (Ainsztein et al, 1998), the, otherFeat=[]-->, belongsTo=parr 138 mechanism by which this domain mediates centromeric localiza-, otherFeat=[]-->, belongsTo=parr 139 tion remains elusive. As INCENP interacts with Survivin by means, otherFeat=[]-->, belongsTo=parr 140 of this N-terminal domain (Fig 1F), it is possible that Survivin, otherFeat=[]-->, belongsTo=parr 141 mediates mitotic localization of the CPC. To test this, a chimeric, otherFeat=[]-->, belongsTo=parr 142 protein that is refractory to both INCENP and Survivin RNAi, otherFeat=[]-->, belongsTo=parr 143 (Fig 2A; data not shown) was generated, in which the centromere-, otherFeat=[]-->, belongsTo=parr 144 targeting domain in INCENP was replaced by Survivin (Survivin-, otherFeat=[]-->, belongsTo=parr 145 INCENP47?920-sil; Fig 4A). This fusion localized normally during, otherFeat=[]-->, belongsTo=parr 146 mitosis, in both an INCENP-depleted and a combined INCENP/, otherFeat=[]-->, belongsTo=parr 147 Survivin-depleted background (Fig 2D,G, arrows). This chimaera, otherFeat=[]-->, belongsTo=parr 148 was also able to localize Aurora-B during mitosis (Fig 2E,F),, otherFeat=[]-->, belongsTo=parr 149 restore serine-10 Histone-H3 phosphorylation (supplementary, otherFeat=[]-->, belongsTo=parr 150 Fig 2D online) and restore CPC function, as expression of the, otherFeat=[]-->, belongsTo=parr 151 chimaera in INCENP-, Survivin- or combined INCENP/Survivin-, otherFeat=[]-->, belongsTo=parr 152 depleted cells rescued SAC function and the proper execution of, otherFeat=[]-->, belongsTo=parr 153 cytokinesis (Fig 2B,C)., otherFeat=[]-->, belongsTo=parr 154 To obtain further evidence that Survivin can serve as a, otherFeat=[]-->, belongsTo=parr 155 determining factor in localizing the CPC, we analysed the location, otherFeat=[]-->, belongsTo=parr 156 of INCENP1?47 in the absence or presence of endogenous, otherFeat=[]-->, belongsTo=parr 157 Survivin. INCENP1?47?GFP (green fluorescent protein) localized, otherFeat=[]-->, belongsTo=parr 158 to centromeres during mitosis in control cells (Fig 2H, upper, otherFeat=[]-->, belongsTo=parr 159 panel, see arrows), but failed to concentrate at centromeres in the, otherFeat=[]-->, belongsTo=parr 160 absence of endogenous Survivin and instead localized diffusely in, otherFeat=[]-->, belongsTo=parr 161 the cytoplasm during mitosis (Fig 2G, lower panel, see arrows),, otherFeat=[]-->, belongsTo=parr 162 indicating that the centromere-targeting domain in INCENP, otherFeat=[]-->, belongsTo=parr 163 requires at least the presence of Survivin to localize to, otherFeat=[]-->, belongsTo=parr 164 centromeres. Taken together, these results show that Survivin is, otherFeat=[]-->, belongsTo=parr 165 an important mediator of mitotic localization of the CPC., otherFeat=[]-->, belongsTo=parr 166 Survivin can target the CPC in the absence of Borealin, otherFeat=[]-->, belongsTo=title 167 Recently, it was suggested that Borealin has a role in determining, otherFeat=[]-->, belongsTo=parr 168 centromeric localization of the CPC (Gassmann et al, 2004). As, otherFeat=[]-->, belongsTo=parr 169 our results suggest that targeting of the Survivin/INCENP/Aurora-B, otherFeat=[]-->, belongsTo=parr 170 complex is mediated by Survivin, we explored whether this, otherFeat=[]-->, belongsTo=parr 171 depended on the presence of Borealin. We depleted Borealin, otherFeat=[]-->, belongsTo=parr 172 using siRNA (Fig 3A?C) and introduced the Survivin?INCENP, otherFeat=[]-->, belongsTo=parr 173 chimaera into these cells. Interestingly, expression of this, otherFeat=[]-->, belongsTo=parr 174 chimaera in Borealin-depleted cells significantly restored CPC, otherFeat=[]-->, belongsTo=parr 175 Fig 1 | Protein?protein interactions within and stability of the chromosomal passenger complex. U2OS cells were transfected with 10 mg mock or inner, otherFeat=[]-->, belongsTo=fig_caption 176 centromere protein (INCENP) short interfering RNA (siRNA) vector combined with pBABE-puro. (A) Puromycin was added to enrich for transfected, otherFeat=[]-->, belongsTo=fig_caption 177 cells, and lysates for western blotting were prepared. (B) Transfected cells were released from a thymidine block and, at indicated time points, lysates, otherFeat=[]-->, belongsTo=fig_caption 178 were prepared for western blotting. N indicates nocodazole treatment for 24 h to enrich for mitotic cells. (C)5 mg of the indicated VSV-tagged plasmids, otherFeat=[]-->, belongsTo=fig_caption 179 was transfected in combination with the siRNA plasmids and pBABE-puro. After puromycin selection, lysates were analysed by western blotting., otherFeat=[]-->, belongsTo=fig_caption 180 (D) Similar to (C), after release from the thymidine block, cells were treated with Taxol for 18 h and collected for fluorescence-activated cell sorting, otherFeat=[]-->, belongsTo=fig_caption 181 (FACS) analysis. Mitotic percentages were determined by staining the cells with the MPM-2 antibody that specifically recognizes mitotic phospho-, otherFeat=[]-->, belongsTo=fig_caption 182 epitopes. (E) Similar to (C), 60 h after transfection, cells were collected for FACS analysis. (F) Human embryonic kidney (HEK) 293 cells were, otherFeat=[]-->, belongsTo=fig_caption 183 transfected with 5 mg of the indicated green fluorescent protein (GFP)-tagged constructs. After 48 h, cells were collected , immunoprecipitations were, otherFeat=[]-->, belongsTo=fig_caption 184 carried out with anti-GFP and samples were analysed by western blotting. The presence of GFP protein (arrowhead) is due to the presence of an, otherFeat=[]-->, belongsTo=fig_caption 185 additional transcription site in the plasmids used. (G) Similar to (C). Note that INCENP1?47 contains both an amino-terminal VSV tag and a carboxy-, otherFeat=[]-->, belongsTo=fig_caption 186 terminal GFP tag. The asterisk denotes an aspecific band recognized by the anti-VSV monoclonal antibody. (H) Similar to (C). At 24 h after puromycin, otherFeat=[]-->, belongsTo=fig_caption 187 selection, nocodazole was added to the cells for 18 h. Mitotic cells were obtained by shake-off and lysates were analysed by western blotting., otherFeat=[]-->, belongsTo=fig_caption 188 c, otherFeat=[]-->, belongsTo=fig_caption 189 CPC targeting mediated by Survivin, otherFeat=[]-->, belongsTo=nota_cab_pie 190 G. Vader et al, otherFeat=[]-->, belongsTo=nota_cab_pie 191 EMBO reports VOL 7 | NO 1 | 2006, otherFeat=[]-->, belongsTo=nota_cab_pie 192 &2006 EUROPEAN MOLECULAR BIOLOGY ORGANIZATION, otherFeat=[]-->, belongsTo=nota_cab_pie 193 scientific report, otherFeat=[]-->, belongsTo=nota_cab_pie 194 86, otherFeat=[]-->, belongsTo=nota_cab_pie 195 function, as judged by restoration of mitotic arrest in response to, otherFeat=[]-->, belongsTo=parr 196 Taxol and a reduction in the percentage of polyploid cells that, otherFeat=[]-->, belongsTo=parr 197 were observed after depletion of Borealin (Fig 3D,E). Expression of, otherFeat=[]-->, belongsTo=parr 198 neither Survivin nor INCENP individually was sufficient to restore, otherFeat=[]-->, belongsTo=parr 199 CPC function in Borealin-depleted cells (Fig 3E; data not shown)., otherFeat=[]-->, belongsTo=parr 200 In line with these functional data, the chimaera was found to, otherFeat=[]-->, belongsTo=parr 201 localize to centromeres and the midbody in Borealin-depleted, otherFeat=[]-->, belongsTo=parr 202 cells (Fig 3F) and to restore Aurora-B localization (supplementary, otherFeat=[]-->, belongsTo=parr 203 0 9 12 15 18 24 N, otherFeat=[]-->, belongsTo=parrnote 204 Mock siRNA, otherFeat=[]-->, belongsTo=parrnote 205 INCENP siRNA, otherFeat=[]-->, belongsTo=parrnote 206 0 9 12 15 18 24 N, otherFeat=[]-->, belongsTo=parrnote 207 +, otherFeat=[]-->, belongsTo=parrnote 208 INCENP1-47-GFP, otherFeat=[]-->, belongsTo=parrnote 209 -, otherFeat=[]-->, belongsTo=parrnote 210 -, otherFeat=[]-->, belongsTo=parrnote 211 -, otherFeat=[]-->, belongsTo=parrnote 212 INCENP47-920-sil-GFP, otherFeat=[]-->, belongsTo=parrnote 213 +, otherFeat=[]-->, belongsTo=parrnote 214 -, otherFeat=[]-->, belongsTo=parrnote 215 -, otherFeat=[]-->, belongsTo=parrnote 216 -, otherFeat=[]-->, belongsTo=parrnote 217 INCENP-sil-GFP, otherFeat=[]-->, belongsTo=parrnote 218 +, otherFeat=[]-->, belongsTo=parrnote 219 -, otherFeat=[]-->, belongsTo=parrnote 220 -, otherFeat=[]-->, belongsTo=parrnote 221 -, otherFeat=[]-->, belongsTo=parrnote 222 Empty vector, otherFeat=[]-->, belongsTo=parrnote 223 +, otherFeat=[]-->, belongsTo=parrnote 224 -, otherFeat=[]-->, belongsTo=parrnote 225 -, otherFeat=[]-->, belongsTo=parrnote 226 -, otherFeat=[]-->, belongsTo=parrnote 227 Total lysate, otherFeat=[]-->, belongsTo=parrnote 228 IP: Anti-GFP, otherFeat=[]-->, belongsTo=parrnote 229 +, otherFeat=[]-->, belongsTo=parrnote 230 -, otherFeat=[]-->, belongsTo=parrnote 231 -, otherFeat=[]-->, belongsTo=parrnote 232 -, otherFeat=[]-->, belongsTo=parrnote 233 + -, otherFeat=[]-->, belongsTo=parrnote 234 -, otherFeat=[]-->, belongsTo=parrnote 235 - +, otherFeat=[]-->, belongsTo=parrnote 236 -, otherFeat=[]-->, belongsTo=parrnote 237 -, otherFeat=[]-->, belongsTo=parrnote 238 -, otherFeat=[]-->, belongsTo=parrnote 239 +, otherFeat=[]-->, belongsTo=parrnote 240 -, otherFeat=[]-->, belongsTo=parrnote 241 -, otherFeat=[]-->, belongsTo=parrnote 242 -, otherFeat=[]-->, belongsTo=parrnote 243 Hours, otherFeat=[]-->, belongsTo=parrnote 244 +, otherFeat=[]-->, belongsTo=parrnote 245 +, otherFeat=[]-->, belongsTo=parrnote 246 -, otherFeat=[]-->, belongsTo=parrnote 247 ++, otherFeat=[]-->, belongsTo=parrnote 248 ++, otherFeat=[]-->, belongsTo=parrnote 249 +, otherFeat=[]-->, belongsTo=parrnote 250 -, otherFeat=[]-->, belongsTo=parrnote 251 --, otherFeat=[]-->, belongsTo=parrnote 252 ++, otherFeat=[]-->, belongsTo=parrnote 253 --, otherFeat=[]-->, belongsTo=parrnote 254 +, otherFeat=[]-->, belongsTo=parrnote 255 -, otherFeat=[]-->, belongsTo=parrnote 256 -, otherFeat=[]-->, belongsTo=parrnote 257 -, otherFeat=[]-->, belongsTo=parrnote 258 -, otherFeat=[]-->, belongsTo=parrnote 259 -, otherFeat=[]-->, belongsTo=parrnote 260 -, otherFeat=[]-->, belongsTo=parrnote 261 Mock siRNA, otherFeat=[]-->, belongsTo=parrnote 262 INCENP siRNA, otherFeat=[]-->, belongsTo=parrnote 263 Empty vector, otherFeat=[]-->, belongsTo=parrnote 264 VSV -INCENP-sil, otherFeat=[]-->, belongsTo=parrnote 265 VSV-INCENP47-920-sil, otherFeat=[]-->, belongsTo=parrnote 266 Mitotic shake-off, otherFeat=[]-->, belongsTo=parrnote 267 (nocodazole), otherFeat=[]-->, belongsTo=parrnote 268 +, otherFeat=[]-->, belongsTo=parrnote 269 +, otherFeat=[]-->, belongsTo=parrnote 270 -, otherFeat=[]-->, belongsTo=parrnote 271 ++, otherFeat=[]-->, belongsTo=parrnote 272 ++, otherFeat=[]-->, belongsTo=parrnote 273 +, otherFeat=[]-->, belongsTo=parrnote 274 -, otherFeat=[]-->, belongsTo=parrnote 275 --, otherFeat=[]-->, belongsTo=parrnote 276 ++, otherFeat=[]-->, belongsTo=parrnote 277 --, otherFeat=[]-->, belongsTo=parrnote 278 +, otherFeat=[]-->, belongsTo=parrnote 279 -, otherFeat=[]-->, belongsTo=parrnote 280 -, otherFeat=[]-->, belongsTo=parrnote 281 -, otherFeat=[]-->, belongsTo=parrnote 282 -, otherFeat=[]-->, belongsTo=parrnote 283 -, otherFeat=[]-->, belongsTo=parrnote 284 -, otherFeat=[]-->, belongsTo=parrnote 285 Mock siRNA, otherFeat=[]-->, belongsTo=parrnote 286 INCENP siRNA, otherFeat=[]-->, belongsTo=parrnote 287 Empty vector, otherFeat=[]-->, belongsTo=parrnote 288 VSV-INCENP-sil, otherFeat=[]-->, belongsTo=parrnote 289 VSV-INCENP47-920-sil, otherFeat=[]-->, belongsTo=parrnote 290 +, otherFeat=[]-->, belongsTo=parrnote 291 +, otherFeat=[]-->, belongsTo=parrnote 292 -, otherFeat=[]-->, belongsTo=parrnote 293 -, otherFeat=[]-->, belongsTo=parrnote 294 -, otherFeat=[]-->, belongsTo=parrnote 295 -, otherFeat=[]-->, belongsTo=parrnote 296 --, otherFeat=[]-->, belongsTo=parrnote 297 -, otherFeat=[]-->, belongsTo=parrnote 298 -, otherFeat=[]-->, belongsTo=parrnote 299 VSV-INCENP1-47-GFP, otherFeat=[]-->, belongsTo=parrnote 300 -, otherFeat=[]-->, belongsTo=parrnote 301 INCENPsiRNA, otherFeat=[]-->, belongsTo=parrnote 302 Mock, otherFeat=[]-->, belongsTo=parrnote 303 siRNA, otherFeat=[]-->, belongsTo=parrnote 304 GFP, otherFeat=[]-->, belongsTo=parrnote 305 Mock, otherFeat=[]-->, belongsTo=parrnote 306 siRNA, otherFeat=[]-->, belongsTo=parrnote 307 INCENP, otherFeat=[]-->, belongsTo=parrnote 308 siRNA, otherFeat=[]-->, belongsTo=parrnote 309 Anti-VSV, otherFeat=[]-->, belongsTo=parrnote 310 Anti-Cdk6, otherFeat=[]-->, belongsTo=parrnote 311 VSV-INCENP, otherFeat=[]-->, belongsTo=parrnote 312 VSV-INCENP-sil, otherFeat=[]-->, belongsTo=parrnote 313 +, otherFeat=[]-->, belongsTo=parrnote 314 -, otherFeat=[]-->, belongsTo=parrnote 315 +, otherFeat=[]-->, belongsTo=parrnote 316 -, otherFeat=[]-->, belongsTo=parrnote 317 -, otherFeat=[]-->, belongsTo=parrnote 318 +, otherFeat=[]-->, belongsTo=parrnote 319 -, otherFeat=[]-->, belongsTo=parrnote 320 +, otherFeat=[]-->, belongsTo=parrnote 321 INCENP siRNA, otherFeat=[]-->, belongsTo=parrnote 322 + VSV-INCENP-sil, otherFeat=[]-->, belongsTo=parrnote 323 4n, otherFeat=[]-->, belongsTo=parrnote 324 2n, otherFeat=[]-->, belongsTo=parrnote 325 INCENP siRNA, otherFeat=[]-->, belongsTo=parrnote 326 + VSV-INCENP47-920-sil, otherFeat=[]-->, belongsTo=parrnote 327 8n, otherFeat=[]-->, belongsTo=parrnote 328 VSV, otherFeat=[]-->, belongsTo=parrnote 329 -, otherFeat=[]-->, belongsTo=parrnote 330 INCENP-sil VSV, otherFeat=[]-->, belongsTo=parrnote 331 -, otherFeat=[]-->, belongsTo=parrnote 332 INCENP, otherFeat=[]-->, belongsTo=parrnote 333 47-920, otherFeat=[]-->, belongsTo=parrnote 334 -sil, otherFeat=[]-->, belongsTo=parrnote 335 Emptyvector, otherFeat=[]-->, belongsTo=parrnote 336 Mitotic, otherFeat=[]-->, belongsTo=parrnote 337 cells, otherFeat=[]-->, belongsTo=parrnote 338 (%), otherFeat=[]-->, belongsTo=parrnote 339 40, otherFeat=[]-->, belongsTo=parrnote 340 20, otherFeat=[]-->, belongsTo=parrnote 341 0, otherFeat=[]-->, belongsTo=parrnote 342 Mock siRNA, otherFeat=[]-->, belongsTo=parrnote 343 INCENP siRNA, otherFeat=[]-->, belongsTo=parrnote 344 +Taxol, otherFeat=[]-->, belongsTo=parrnote 345 10.1%, otherFeat=[]-->, belongsTo=parrnote 346 25.8%, otherFeat=[]-->, belongsTo=parrnote 347 12.0%, otherFeat=[]-->, belongsTo=parrnote 348 19.3%, otherFeat=[]-->, belongsTo=parrnote 349 Mock siRNA, otherFeat=[]-->, belongsTo=parrnote 350 INCENP siRNA, otherFeat=[]-->, belongsTo=parrnote 351 12 3 4, otherFeat=[]-->, belongsTo=parrnote 352 5 6, otherFeat=[]-->, belongsTo=parrnote 353 7 8, otherFeat=[]-->, belongsTo=parrnote 354 12, otherFeat=[]-->, belongsTo=parrnote 355 3, otherFeat=[]-->, belongsTo=parrnote 356 4, otherFeat=[]-->, belongsTo=parrnote 357 12345, otherFeat=[]-->, belongsTo=parrnote 358 Anti-INCENP, otherFeat=[]-->, belongsTo=parrnote 359 Anti-Aurora-B, otherFeat=[]-->, belongsTo=parrnote 360 Anti-Survivin, otherFeat=[]-->, belongsTo=parrnote 361 Anti-Aurora-B, otherFeat=[]-->, belongsTo=parrnote 362 Anti-GFP, otherFeat=[]-->, belongsTo=parrnote 363 Anti-Survivin, otherFeat=[]-->, belongsTo=parrnote 364 Anti-Aurora-B, otherFeat=[]-->, belongsTo=parrnote 365 Anti-VSV, otherFeat=[]-->, belongsTo=parrnote 366 Anti-Survivin, otherFeat=[]-->, belongsTo=parrnote 367 Anti-Cdk4, otherFeat=[]-->, belongsTo=parrnote 368 Anti-Aurora-B, otherFeat=[]-->, belongsTo=parrnote 369 Anti-VSV, otherFeat=[]-->, belongsTo=parrnote 370 Anti-Survivin, otherFeat=[]-->, belongsTo=parrnote 371 Anti-phospho-Histone H3, otherFeat=[]-->, belongsTo=parrnote 372 Anti-Cdk4, otherFeat=[]-->, belongsTo=parrnote 373 Anti-Aurora-B, otherFeat=[]-->, belongsTo=parrnote 374 Anti-Survivin, otherFeat=[]-->, belongsTo=parrnote 375 Anti-Actin, otherFeat=[]-->, belongsTo=parrnote 376 Anti-Cdk4, otherFeat=[]-->, belongsTo=parrnote 377 GH, otherFeat=[]-->, belongsTo=parrnote 378 EF, otherFeat=[]-->, belongsTo=parrnote 379 CD, otherFeat=[]-->, belongsTo=parrnote 380 A, otherFeat=[]-->, belongsTo=parrnote 381 B, otherFeat=[]-->, belongsTo=parrnote 382 CPC targeting mediated by Survivin, otherFeat=[]-->, belongsTo=nota_cab_pie 383 G. Vader et al, otherFeat=[]-->, belongsTo=nota_cab_pie 384 &2006 EUROPEAN MOLECULAR BIOLOGY ORGANIZATION, otherFeat=[]-->, belongsTo=nota_cab_pie 385 EMBO reports VOL 7 | NO 1 | 2006, otherFeat=[]-->, belongsTo=nota_cab_pie 386 scientific report, otherFeat=[]-->, belongsTo=nota_cab_pie 387 87, otherFeat=[]-->, belongsTo=nota_cab_pie 388 Fig 3 online). However, it should be noted that the association, otherFeat=[]-->, belongsTo=parr 389 of the Survivin?INCENP chimaera to centromeres and the central, otherFeat=[]-->, belongsTo=parr 390 spindle was affected in Borealin-depleted cells. Instead of, otherFeat=[]-->, belongsTo=parr 391 concentrating at centromeres and central spindle, a significant, otherFeat=[]-->, belongsTo=parr 392 portion of the chimaera localized to chromatin throughout mitosis, otherFeat=[]-->, belongsTo=parr 393 (Fig 3F, lower panel; data not shown). Taken together, these data, otherFeat=[]-->, belongsTo=parr 394 show that the Survivin?INCENP chimaera is sufficient to restore a, otherFeat=[]-->, belongsTo=parr 395 functional CPC in Borealin-depleted cells, and that Borealin might, otherFeat=[]-->, belongsTo=parr 396 facilitate dissociation of the CPC from chromatin or enhance its, otherFeat=[]-->, belongsTo=parr 397 concentration at centromeres and the central spindle., otherFeat=[]-->, belongsTo=parr 398 Borealin facilitates Survivin?INCENP interaction, otherFeat=[]-->, belongsTo=title 399 As Borealin is essential for localization of INCENP and Survivin, otherFeat=[]-->, belongsTo=parr 400 (Gassmann et al, 2004), but not for a chimaera in which these, otherFeat=[]-->, belongsTo=parr 401 two proteins are covalently linked, we reasoned that Borealin, otherFeat=[]-->, belongsTo=parr 402 might be important for the Survivin?INCENP interaction. To, otherFeat=[]-->, belongsTo=parr 403 further investigate the potential role of Borealin in regulating the, otherFeat=[]-->, belongsTo=parr 404 Survivin?INCENP interaction, immunoprecipitations were carried, otherFeat=[]-->, belongsTo=parr 405 out with GFP?INCENP from Borealin-depleted cells expressing, otherFeat=[]-->, belongsTo=parr 406 either exogenous Survivin or Borealin. In control cells, both, otherFeat=[]-->, belongsTo=parr 407 endogenous and exogenous Survivin could interact with INCENP, otherFeat=[]-->, belongsTo=parr 408 (Fig 3H, lanes 1?3). In contrast, in the absence of endogenous, otherFeat=[]-->, belongsTo=parr 409 Borealin, neither endogenous nor exogenous Survivin was able to, otherFeat=[]-->, belongsTo=parr 410 interact with INCENP (Fig 3H, lanes 4,5). As depletion of Borealin, otherFeat=[]-->, belongsTo=parr 411 also reduced Survivin levels, this probably explains why no, otherFeat=[]-->, belongsTo=parr 412 endogenous Survivin was found to interact with INCENP (Fig 3H,, otherFeat=[]-->, belongsTo=parr 413 lanes 4,10; Gassmann et al, 2004; Sampath et al, 2004). Indeed,, otherFeat=[]-->, belongsTo=parr 414 after expression of exogenous, RNAi-resistant Borealin, endo-, otherFeat=[]-->, belongsTo=parr 415 genous Survivin levels and Survivin interaction with INCENP were, otherFeat=[]-->, belongsTo=parr 416 restored (Fig 3E, lanes 6,12). Importantly, although exogenous, otherFeat=[]-->, belongsTo=parr 417 Survivin levels were not affected by Borealin depletion, Survivin, otherFeat=[]-->, belongsTo=parr 418 failed to interact with INCENP, indicating that, in vivo, an efficient, otherFeat=[]-->, belongsTo=parr 419 interaction of Survivin and INCENP is dependent on the presence, otherFeat=[]-->, belongsTo=parr 420 of Borealin (Fig 3E, lanes 5,11). The observation that Borealin can, otherFeat=[]-->, belongsTo=parr 421 interact with INCENP that lacks the Survivin interaction domain, otherFeat=[]-->, belongsTo=parr 422 (INCENP47?920; Fig 3G, lanes 6,8; supplementary Fig 3 online), in, otherFeat=[]-->, belongsTo=parr 423 combination with previous in vitro data that have shown the direct, otherFeat=[]-->, belongsTo=parr 424 interaction of Survivin and INCENP (Wheatley et al, 2001;, otherFeat=[]-->, belongsTo=parr 425 Romano et al, 2003), rules out a direct bridging function for, otherFeat=[]-->, belongsTo=parr 426 Borealin between Survivin and the centromere-targeting domain, otherFeat=[]-->, belongsTo=parr 427 of INCENP. Hence, similar to CSC-1, its distant homologue in, otherFeat=[]-->, belongsTo=parr 428 Caenorhabditis elegans (Romano et al, 2003), human Borealin has, otherFeat=[]-->, belongsTo=parr 429 a role in facilitating Survivin?INCENP interaction. By generating, otherFeat=[]-->, belongsTo=parr 430 the Survivin?INCENP chimaera, we have circumvented the, otherFeat=[]-->, belongsTo=parr 431 necessity for Borealin in stabilizing Survivin?INCENP interaction,, otherFeat=[]-->, belongsTo=parr 432 which probably explains why a functional CPC can be directed to, otherFeat=[]-->, belongsTo=parr 433 the right mitotic structures in Borealin-depleted cells., otherFeat=[]-->, belongsTo=parr 434 Conclusion, otherFeat=[]-->, belongsTo=title 435 Given the essential functions of Aurora-B during mitosis, explaining, otherFeat=[]-->, belongsTo=parr 436 the mechanisms behind its dynamic localization is of great, otherFeat=[]-->, belongsTo=parr 437 importance. The observation that depletion of one CPC component, otherFeat=[]-->, belongsTo=parr 438 by siRNA results in the destabilization of the entire complex, otherFeat=[]-->, belongsTo=parr 439 instigates the need for more complex experiments to unravel the, otherFeat=[]-->, belongsTo=parr 440 functions of single CPC components. Using RNAi-complementation,, otherFeat=[]-->, belongsTo=parr 441 we have provided evidence that an important function of Survivin, otherFeat=[]-->, belongsTo=parr 442 is to serve as an interface between the centromere/central spindle, otherFeat=[]-->, belongsTo=parr 443 and the CPC, whereas Borealin facilitates the interaction of Survivin, otherFeat=[]-->, belongsTo=parr 444 and INCENP (Fig 4B). Importantly, the targeting function of Survivin, otherFeat=[]-->, belongsTo=parr 445 was revealed only when Survivin was fused to INCENP lacking, otherFeat=[]-->, belongsTo=parr 446 its centromere-targeting domain. This suggests that although, otherFeat=[]-->, belongsTo=parr 447 Survivin can mediate localization of the CPC to its proper mitotic, otherFeat=[]-->, belongsTo=parr 448 structures, the other CPC components are probably needed to, otherFeat=[]-->, belongsTo=parr 449 obtain a stable association (possibly by affecting the on/off rate of, otherFeat=[]-->, belongsTo=parr 450 the complex). Identifying the Survivin interaction partners at the, otherFeat=[]-->, belongsTo=parr 451 centromere and midbody will be an important next step in, otherFeat=[]-->, belongsTo=parr 452 understanding the regulation of the CPC., otherFeat=[]-->, belongsTo=parr 453 METHODS, otherFeat=[]-->, belongsTo=title 454 Antibodies and reagents. The following antibodies were used:, otherFeat=[]-->, belongsTo=parr 455 rabbit anti-INCENP and rabbit anti-Aurora-B (Abcam, Cambridge,, otherFeat=[]-->, belongsTo=parr 456 UK), rabbit anti-Survivin (R&D, Minneapolis, MN, USA), rabbit, otherFeat=[]-->, belongsTo=parr 457 anti-Borealin (gift from Dr H. Funabiki), mouse anti-Aurora-B, otherFeat=[]-->, belongsTo=parr 458 (Transduction, Lexington, KE, USA), mouse anti-VSV and mouse, otherFeat=[]-->, belongsTo=parr 459 anti-a-Tubulin (Sigma, St Louis, MO, USA), rabbit anti-Cdk6, otherFeat=[]-->, belongsTo=parr 460 and rabbit anti-Cdk4 (Santa Cruz, Santa Cruz, CA, USA), sheep, otherFeat=[]-->, belongsTo=parr 461 anti-BubR1 (gift from Dr S. Taylor), rabbit anti-GFP (gift from, otherFeat=[]-->, belongsTo=parr 462 Dr J. Neefjes), rabbit anti-phospho-Ser10-histone-H3 and mouse, otherFeat=[]-->, belongsTo=parr 463 anti-MPM-2 (Upstate, Charlotsville, VA, USA), CREST antiserum, otherFeat=[]-->, belongsTo=parr 464 (Cortex Biochem, San Leandro, CA, USA), peroxidase-conjugated, otherFeat=[]-->, belongsTo=parr 465 goat anti-rabbit and peroxidase-conjugated goat anti-mouse, otherFeat=[]-->, belongsTo=parr 466 (Dako, Glostrup, Denmark) and donkey anti-mouse/Cy5 (Jackson,, otherFeat=[]-->, belongsTo=parr 467 West Grove, PA, USA), goat anti-rabbit/Alexa-568, goat anti-, otherFeat=[]-->, belongsTo=parr 468 rabbit/Alexa-633, goat anti-mouse/Alexa-568 and donkey anti-, otherFeat=[]-->, belongsTo=parr 469 sheep/Alexa-568 (Molecular Probes, Eugene, OR, USA). Reagents, otherFeat=[]-->, belongsTo=parr 470 were from Sigma unless stated otherwise., otherFeat=[]-->, belongsTo=parr 471 Plasmids. RNAi vectors were generated as described (Lens et al,, otherFeat=[]-->, belongsTo=parr 472 2003), and were based on 50-TGACACGGAGATTGCCAAC-30, otherFeat=[]-->, belongsTo=parr 473 (INCENP) and 50-CAGCTGACCTGGATATCAC-30 (Borealin)., otherFeat=[]-->, belongsTo=parr 474 Human INCENP and Borealin were PCR amplified from a T-cell, otherFeat=[]-->, belongsTo=parr 475 Fig 2 | Survivin is a determining factor for mitotic localization of the chromosome passenger complex. (A) U2OS cells were transfected with the, otherFeat=[]-->, belongsTo=fig_caption 476 indicated plasmids. Puromycin was added to enrich for transfected cells. Lysates were analysed by western blotting. (B,C) Cells were transfected with, otherFeat=[]-->, belongsTo=fig_caption 477 the indicated short interfering RNA (siRNA) plasmids combined with the indicated VSV-tagged constructs. (B) After release from a thymidine block,, otherFeat=[]-->, belongsTo=fig_caption 478 cells were treated with Taxol and collected for fluorescence-activated cell sorting (FACS) analysis 18 h later. Mitotic percentages were determinedby, otherFeat=[]-->, belongsTo=fig_caption 479 MPM-2 staining. (C) Cells were collected for FACS analysis 60 h after transfection. (D,E) Cells grown on coverslips were transfected with mock or, otherFeat=[]-->, belongsTo=fig_caption 480 inner centromere protein (INCENP)/Survivin siRNA plasmids, VSV?Survivin?INCENP47?920-sil and H2B?GFP (green fluorescent protein)., otherFeat=[]-->, belongsTo=fig_caption 481 Immunostainings were carried out with the indicated antibodies. DNA (H2B?GFP) is depicted in blue. (F) Cells grown on coverslips were transfected, otherFeat=[]-->, belongsTo=fig_caption 482 with the indicated plasmids and H2B?GFP. Cells were stained with anti-Aurora-B, and the percentage of H2B?GFP-positive prometaphase cells in, otherFeat=[]-->, belongsTo=fig_caption 483 which Aurora-B localized on the centromeres was scored. The number of cells counted per condition is indicated. (G) Time-lapse images of a, otherFeat=[]-->, belongsTo=fig_caption 484 representative cell transfected with INCENP siRNA plasmid, Survivin?INCENP47?920-sil?GFP and H2B?diHcRed. Differential interference contrast, otherFeat=[]-->, belongsTo=fig_caption 485 (DIC), GFP and diHcRed signals are shown. (H) Time-lapse imaging of cells transfected with mock (upper panel) or Survivin siRNA plasmid (lower, otherFeat=[]-->, belongsTo=fig_caption 486 panel), INCENP1?47-GFP and H2B?diHcRed. Scale bars, 5 mm., otherFeat=[]-->, belongsTo=fig_caption 487 c, otherFeat=[]-->, belongsTo=fig_caption 488 CPC targeting mediated by Survivin, otherFeat=[]-->, belongsTo=nota_cab_pie 489 G. Vader et al, otherFeat=[]-->, belongsTo=nota_cab_pie 490 EMBO reports VOL 7 | NO 1 | 2006, otherFeat=[]-->, belongsTo=nota_cab_pie 491 &2006 EUROPEAN MOLECULAR BIOLOGY ORGANIZATION, otherFeat=[]-->, belongsTo=nota_cab_pie 492 scientific report, otherFeat=[]-->, belongsTo=nota_cab_pie 493 88, otherFeat=[]-->, belongsTo=nota_cab_pie 494 0:00, otherFeat=[]-->, belongsTo=parrnote 495 0:18, otherFeat=[]-->, belongsTo=parrnote 496 0:24, otherFeat=[]-->, belongsTo=parrnote 497 0:30, otherFeat=[]-->, belongsTo=parrnote 498 0:42, otherFeat=[]-->, belongsTo=parrnote 499 0:48, otherFeat=[]-->, belongsTo=parrnote 500 2:18, otherFeat=[]-->, belongsTo=parrnote 501 GFP, otherFeat=[]-->, belongsTo=parrnote 502 H2B-, otherFeat=[]-->, belongsTo=parrnote 503 diHcRed, otherFeat=[]-->, belongsTo=parrnote 504 DIC, otherFeat=[]-->, belongsTo=parrnote 505 INCENP siRNA +, otherFeat=[]-->, belongsTo=parrnote 506 VSV-Survivin-INCENP47-920-GFP, otherFeat=[]-->, belongsTo=parrnote 507 GFP, otherFeat=[]-->, belongsTo=parrnote 508 DIC, otherFeat=[]-->, belongsTo=parrnote 509 H2B -, otherFeat=[]-->, belongsTo=parrnote 510 diHcRed, otherFeat=[]-->, belongsTo=parrnote 511 INCENP1-47 - GFP, otherFeat=[]-->, belongsTo=parrnote 512 +, otherFeat=[]-->, belongsTo=parrnote 513 +, otherFeat=[]-->, belongsTo=parrnote 514 Anti-VSV, otherFeat=[]-->, belongsTo=parrnote 515 Anti-Cdk4, otherFeat=[]-->, belongsTo=parrnote 516 -, otherFeat=[]-->, belongsTo=parrnote 517 -, otherFeat=[]-->, belongsTo=parrnote 518 VSV-INCENP-sil, otherFeat=[]-->, belongsTo=parrnote 519 VSV-Survivin-, otherFeat=[]-->, belongsTo=parrnote 520 INCENP47-920-sil, otherFeat=[]-->, belongsTo=parrnote 521 Mock, otherFeat=[]-->, belongsTo=parrnote 522 siRNA, otherFeat=[]-->, belongsTo=parrnote 523 Survivin, otherFeat=[]-->, belongsTo=parrnote 524 siRNA, otherFeat=[]-->, belongsTo=parrnote 525 INCENP, otherFeat=[]-->, belongsTo=parrnote 526 siRNA, otherFeat=[]-->, belongsTo=parrnote 527 H2B-, otherFeat=[]-->, belongsTo=parrnote 528 GFP, otherFeat=[]-->, belongsTo=parrnote 529 Merge, otherFeat=[]-->, belongsTo=parrnote 530 VSV-, otherFeat=[]-->, belongsTo=parrnote 531 Survivin -, otherFeat=[]-->, belongsTo=parrnote 532 INCENP, otherFeat=[]-->, belongsTo=parrnote 533 47 -920-sil, otherFeat=[]-->, belongsTo=parrnote 534 Mock siRNA, otherFeat=[]-->, belongsTo=parrnote 535 Survivin siRNA +, otherFeat=[]-->, belongsTo=parrnote 536 INCENP siRNA, otherFeat=[]-->, belongsTo=parrnote 537 INCENP siRNA, otherFeat=[]-->, belongsTo=parrnote 538 Mock siRNA, otherFeat=[]-->, belongsTo=parrnote 539 Survivin siRNA, otherFeat=[]-->, belongsTo=parrnote 540 INCENP siRNA, otherFeat=[]-->, belongsTo=parrnote 541 Survivin siRNA +, otherFeat=[]-->, belongsTo=parrnote 542 INCENP siRNA, otherFeat=[]-->, belongsTo=parrnote 543 Empty vector, otherFeat=[]-->, belongsTo=parrnote 544 VSV-Survivin-, otherFeat=[]-->, belongsTo=parrnote 545 INCENP47-920-sil, otherFeat=[]-->, belongsTo=parrnote 546 4n, otherFeat=[]-->, belongsTo=parrnote 547 2n, otherFeat=[]-->, belongsTo=parrnote 548 8n, otherFeat=[]-->, belongsTo=parrnote 549 4n, otherFeat=[]-->, belongsTo=parrnote 550 2 n, otherFeat=[]-->, belongsTo=parrnote 551 8n, otherFeat=[]-->, belongsTo=parrnote 552 5.7%, otherFeat=[]-->, belongsTo=parrnote 553 18.5%, otherFeat=[]-->, belongsTo=parrnote 554 21.9%, otherFeat=[]-->, belongsTo=parrnote 555 6.4%, otherFeat=[]-->, belongsTo=parrnote 556 11.6%, otherFeat=[]-->, belongsTo=parrnote 557 10.2%, otherFeat=[]-->, belongsTo=parrnote 558 7.7%, otherFeat=[]-->, belongsTo=parrnote 559 4 n, otherFeat=[]-->, belongsTo=parrnote 560 2n, otherFeat=[]-->, belongsTo=parrnote 561 8n, otherFeat=[]-->, belongsTo=parrnote 562 VSV-Survivin-sil, otherFeat=[]-->, belongsTo=note 563 7.8%, otherFeat=[]-->, belongsTo=parrnote 564 17.5%, otherFeat=[]-->, belongsTo=parrnote 565 10.4%, otherFeat=[]-->, belongsTo=parrnote 566 18.3%, otherFeat=[]-->, belongsTo=parrnote 567 Empty vector, otherFeat=[]-->, belongsTo=parrnote 568 VSV-INCENP-sil, otherFeat=[]-->, belongsTo=parrnote 569 VSV-Surv-INCENP47-920-sil, otherFeat=[]-->, belongsTo=parrnote 570 VSV-Survivin-sil, otherFeat=[]-->, belongsTo=parrnote 571 Mitotic, otherFeat=[]-->, belongsTo=parrnote 572 cells, otherFeat=[]-->, belongsTo=parrnote 573 (%) 40, otherFeat=[]-->, belongsTo=parrnote 574 20, otherFeat=[]-->, belongsTo=parrnote 575 0, otherFeat=[]-->, belongsTo=parrnote 576 60, otherFeat=[]-->, belongsTo=parrnote 577 Survivin, otherFeat=[]-->, belongsTo=parrnote 578 siRNA, otherFeat=[]-->, belongsTo=parrnote 579 INCENP, otherFeat=[]-->, belongsTo=parrnote 580 siRNA, otherFeat=[]-->, belongsTo=parrnote 581 Mock, otherFeat=[]-->, belongsTo=parrnote 582 siRNA, otherFeat=[]-->, belongsTo=parrnote 583 Survivin, otherFeat=[]-->, belongsTo=parrnote 584 siRNA, otherFeat=[]-->, belongsTo=parrnote 585 + INCEN, otherFeat=[]-->, belongsTo=parrnote 586 PsiRNA, otherFeat=[]-->, belongsTo=parrnote 587 Merge, otherFeat=[]-->, belongsTo=parrnote 588 DNA, otherFeat=[]-->, belongsTo=parrnote 589 INCENP siRNA +, otherFeat=[]-->, belongsTo=parrnote 590 VSV-Survivin -, otherFeat=[]-->, belongsTo=parrnote 591 INCENP47-920-sil, otherFeat=[]-->, belongsTo=parrnote 592 Anti-VSV, otherFeat=[]-->, belongsTo=parrnote 593 Anti-VSV, otherFeat=[]-->, belongsTo=parrnote 594 Anti-Aurora-B, otherFeat=[]-->, belongsTo=parrnote 595 Aur, otherFeat=[]-->, belongsTo=parrnote 596 -B-positive, otherFeat=[]-->, belongsTo=parrnote 597 cells, otherFeat=[]-->, belongsTo=parrnote 598 (%), otherFeat=[]-->, belongsTo=parrnote 599 0, otherFeat=[]-->, belongsTo=parrnote 600 40, otherFeat=[]-->, belongsTo=parrnote 601 60, otherFeat=[]-->, belongsTo=parrnote 602 80, otherFeat=[]-->, belongsTo=parrnote 603 100, otherFeat=[]-->, belongsTo=parrnote 604 20, otherFeat=[]-->, belongsTo=parrnote 605 Mock, otherFeat=[]-->, belongsTo=parrnote 606 siRNA, otherFeat=[]-->, belongsTo=parrnote 607 INCENP, otherFeat=[]-->, belongsTo=parrnote 608 siRNA, otherFeat=[]-->, belongsTo=parrnote 609 INCENP, otherFeat=[]-->, belongsTo=parrnote 610 siRNA, otherFeat=[]-->, belongsTo=parrnote 611 +, otherFeat=[]-->, belongsTo=parrnote 612 VSV, otherFeat=[]-->, belongsTo=parrnote 613 -INCENP-silINCENP, otherFeat=[]-->, belongsTo=parrnote 614 siRNA, otherFeat=[]-->, belongsTo=parrnote 615 +, otherFeat=[]-->, belongsTo=parrnote 616 VSV, otherFeat=[]-->, belongsTo=parrnote 617 -Surv, otherFeat=[]-->, belongsTo=parrnote 618 -INCENP, otherFeat=[]-->, belongsTo=parrnote 619 47- 920, otherFeat=[]-->, belongsTo=parrnote 620 -sil, otherFeat=[]-->, belongsTo=parrnote 621 n=47, otherFeat=[]-->, belongsTo=parrnote 622 n=96, otherFeat=[]-->, belongsTo=parrnote 623 n=87, otherFeat=[]-->, belongsTo=parrnote 624 n=62, otherFeat=[]-->, belongsTo=parrnote 625 + Taxol, otherFeat=[]-->, belongsTo=parrnote 626 G, otherFeat=[]-->, belongsTo=parrnote 627 H, otherFeat=[]-->, belongsTo=parrnote 628 F, otherFeat=[]-->, belongsTo=parrnote 629 D, otherFeat=[]-->, belongsTo=parrnote 630 C, otherFeat=[]-->, belongsTo=parrnote 631 E, otherFeat=[]-->, belongsTo=parrnote 632 AB, otherFeat=[]-->, belongsTo=parrnote 633 23.9%, otherFeat=[]-->, belongsTo=parrnote 634 CPC targeting mediated by Survivin, otherFeat=[]-->, belongsTo=nota_cab_pie 635 G. Vader et al, otherFeat=[]-->, belongsTo=nota_cab_pie 636 &2006 EUROPEAN MOLECULAR BIOLOGY ORGANIZATION, otherFeat=[]-->, belongsTo=nota_cab_pie 637 EMBO reports VOL 7 | NO 1 | 2006, otherFeat=[]-->, belongsTo=nota_cab_pie 638 scientific report, otherFeat=[]-->, belongsTo=nota_cab_pie 639 89, otherFeat=[]-->, belongsTo=nota_cab_pie 640 Borealin siRNA, otherFeat=[]-->, belongsTo=parrnote 641 +, otherFeat=[]-->, belongsTo=parrnote 642 -, otherFeat=[]-->, belongsTo=parrnote 643 VSV?Borealin, otherFeat=[]-->, belongsTo=parrnote 644 Anti-VSV, otherFeat=[]-->, belongsTo=parrnote 645 Anti-Survivin, otherFeat=[]-->, belongsTo=parrnote 646 Anti-Tubulin, otherFeat=[]-->, belongsTo=parrnote 647 +, otherFeat=[]-->, belongsTo=parrnote 648 -, otherFeat=[]-->, belongsTo=parrnote 649 Mock siRNA, otherFeat=[]-->, belongsTo=parrnote 650 +, otherFeat=[]-->, belongsTo=parrnote 651 +, otherFeat=[]-->, belongsTo=parrnote 652 4 n, otherFeat=[]-->, belongsTo=parrnote 653 2n, otherFeat=[]-->, belongsTo=parrnote 654 8 n, otherFeat=[]-->, belongsTo=parrnote 655 4n, otherFeat=[]-->, belongsTo=parrnote 656 2n, otherFeat=[]-->, belongsTo=parrnote 657 8 n, otherFeat=[]-->, belongsTo=parrnote 658 Mock, otherFeat=[]-->, belongsTo=parrnote 659 siRNA, otherFeat=[]-->, belongsTo=parrnote 660 Borealin, otherFeat=[]-->, belongsTo=parrnote 661 siRNA, otherFeat=[]-->, belongsTo=parrnote 662 Empty vector, otherFeat=[]-->, belongsTo=parrnote 663 VSV-Survivin-, otherFeat=[]-->, belongsTo=parrnote 664 INCENP47-920-sil, otherFeat=[]-->, belongsTo=parrnote 665 4.3%, otherFeat=[]-->, belongsTo=parrnote 666 8.7%, otherFeat=[]-->, belongsTo=parrnote 667 9.4%, otherFeat=[]-->, belongsTo=parrnote 668 26.7%, otherFeat=[]-->, belongsTo=parrnote 669 D, otherFeat=[]-->, belongsTo=parrnote 670 F, otherFeat=[]-->, belongsTo=parrnote 671 E, otherFeat=[]-->, belongsTo=parrnote 672 40, otherFeat=[]-->, belongsTo=parrnote 673 20, otherFeat=[]-->, belongsTo=parrnote 674 0, otherFeat=[]-->, belongsTo=parrnote 675 INCENP, otherFeat=[]-->, belongsTo=parrnote 676 siRNA, otherFeat=[]-->, belongsTo=parrnote 677 Mock, otherFeat=[]-->, belongsTo=parrnote 678 siRNA, otherFeat=[]-->, belongsTo=parrnote 679 Bor, otherFeat=[]-->, belongsTo=parrnote 680 ealin, otherFeat=[]-->, belongsTo=parrnote 681 siRNA, otherFeat=[]-->, belongsTo=parrnote 682 +Taxol, otherFeat=[]-->, belongsTo=parrnote 683 Mitotic, otherFeat=[]-->, belongsTo=parrnote 684 cells, otherFeat=[]-->, belongsTo=parrnote 685 (%), otherFeat=[]-->, belongsTo=parrnote 686 Empty vector, otherFeat=[]-->, belongsTo=parrnote 687 VSV-INCENP-sil, otherFeat=[]-->, belongsTo=parrnote 688 VSV-Surv-INCENP47-920-sil, otherFeat=[]-->, belongsTo=parrnote 689 Mock, otherFeat=[]-->, belongsTo=parrnote 690 siRNA, otherFeat=[]-->, belongsTo=parrnote 691 Borealin, otherFeat=[]-->, belongsTo=parrnote 692 siRNA, otherFeat=[]-->, belongsTo=parrnote 693 Mock, otherFeat=[]-->, belongsTo=parrnote 694 siRNA, otherFeat=[]-->, belongsTo=parrnote 695 Borealin, otherFeat=[]-->, belongsTo=parrnote 696 siRNA, otherFeat=[]-->, belongsTo=parrnote 697 VSV-Survivin-sil, otherFeat=[]-->, belongsTo=parrnote 698 VSV-Borealin-sil, otherFeat=[]-->, belongsTo=parrnote 699 Anti-GFP, otherFeat=[]-->, belongsTo=parrnote 700 Anti-Survivin, otherFeat=[]-->, belongsTo=parrnote 701 Anti-VSV, otherFeat=[]-->, belongsTo=parrnote 702 (Borealin), otherFeat=[]-->, belongsTo=parrnote 703 Empty vector, otherFeat=[]-->, belongsTo=parrnote 704 + -- + --, otherFeat=[]-->, belongsTo=parrnote 705 + -- +, otherFeat=[]-->, belongsTo=parrnote 706 --, otherFeat=[]-->, belongsTo=parrnote 707 - + -- + -- + -- + -, otherFeat=[]-->, belongsTo=parrnote 708 -- +, otherFeat=[]-->, belongsTo=parrnote 709 -- +, otherFeat=[]-->, belongsTo=parrnote 710 -- + -- +, otherFeat=[]-->, belongsTo=parrnote 711 Exog., otherFeat=[]-->, belongsTo=parrnote 712 Endog., otherFeat=[]-->, belongsTo=parrnote 713 Total lysate, otherFeat=[]-->, belongsTo=parrnote 714 12, otherFeat=[]-->, belongsTo=parrnote 715 3 4 5 6, otherFeat=[]-->, belongsTo=parrnote 716 78 9 10 11 12, otherFeat=[]-->, belongsTo=parrnote 717 GFP-INCENP, otherFeat=[]-->, belongsTo=parrnote 718 ++ + + + +, otherFeat=[]-->, belongsTo=parrnote 719 + + + +, otherFeat=[]-->, belongsTo=parrnote 720 + +, otherFeat=[]-->, belongsTo=parrnote 721 4 n, otherFeat=[]-->, belongsTo=parrnote 722 2n, otherFeat=[]-->, belongsTo=parrnote 723 8 n, otherFeat=[]-->, belongsTo=parrnote 724 5.4%, otherFeat=[]-->, belongsTo=parrnote 725 35.7%, otherFeat=[]-->, belongsTo=parrnote 726 6.9%, otherFeat=[]-->, belongsTo=parrnote 727 Mock, otherFeat=[]-->, belongsTo=parrnote 728 siRNA, otherFeat=[]-->, belongsTo=parrnote 729 Borealin, otherFeat=[]-->, belongsTo=parrnote 730 siRNA, otherFeat=[]-->, belongsTo=parrnote 731 Borealin, otherFeat=[]-->, belongsTo=parrnote 732 siRNA +, otherFeat=[]-->, belongsTo=parrnote 733 VSV -Borealin-sil, otherFeat=[]-->, belongsTo=parrnote 734 Mock, otherFeat=[]-->, belongsTo=parrnote 735 siRNA, otherFeat=[]-->, belongsTo=parrnote 736 Borealin, otherFeat=[]-->, belongsTo=parrnote 737 siRNA, otherFeat=[]-->, belongsTo=parrnote 738 Anti-Borealin, otherFeat=[]-->, belongsTo=parrnote 739 H2B-GFP, otherFeat=[]-->, belongsTo=parrnote 740 Merge, otherFeat=[]-->, belongsTo=parrnote 741 Mock, otherFeat=[]-->, belongsTo=parrnote 742 siRNA, otherFeat=[]-->, belongsTo=parrnote 743 Borealin, otherFeat=[]-->, belongsTo=parrnote 744 siRNA, otherFeat=[]-->, belongsTo=parrnote 745 0, otherFeat=[]-->, belongsTo=parrnote 746 20, otherFeat=[]-->, belongsTo=parrnote 747 40, otherFeat=[]-->, belongsTo=parrnote 748 60, otherFeat=[]-->, belongsTo=parrnote 749 80, otherFeat=[]-->, belongsTo=parrnote 750 100 n=18, otherFeat=[]-->, belongsTo=parrnote 751 n=127, otherFeat=[]-->, belongsTo=parrnote 752 Bor, otherFeat=[]-->, belongsTo=parrnote 753 ealin-positive cells, otherFeat=[]-->, belongsTo=parrnote 754 (%), otherFeat=[]-->, belongsTo=parrnote 755 GFP, otherFeat=[]-->, belongsTo=parrnote 756 Anti-Borealin, otherFeat=[]-->, belongsTo=parrnote 757 Anti-Borealin, otherFeat=[]-->, belongsTo=parrnote 758 CREST, otherFeat=[]-->, belongsTo=parrnote 759 Merge, otherFeat=[]-->, belongsTo=parrnote 760 GFP, otherFeat=[]-->, belongsTo=parrnote 761 DNA, otherFeat=[]-->, belongsTo=parrnote 762 Merge, otherFeat=[]-->, belongsTo=parrnote 763 Borealin siRNA +, otherFeat=[]-->, belongsTo=parrnote 764 VSV -Survivin-INCENP47-920-sil-GFP, otherFeat=[]-->, belongsTo=parrnote 765 Total lysate, otherFeat=[]-->, belongsTo=parrnote 766 IP: Anti-GFP, otherFeat=[]-->, belongsTo=parrnote 767 IP: Anti-GFP, otherFeat=[]-->, belongsTo=parrnote 768 GFP-INCENP, otherFeat=[]-->, belongsTo=parrnote 769 -, otherFeat=[]-->, belongsTo=parrnote 770 +, otherFeat=[]-->, belongsTo=parrnote 771 +, otherFeat=[]-->, belongsTo=parrnote 772 +, otherFeat=[]-->, belongsTo=parrnote 773 --, otherFeat=[]-->, belongsTo=parrnote 774 ++ -, otherFeat=[]-->, belongsTo=parrnote 775 -, otherFeat=[]-->, belongsTo=parrnote 776 ++, otherFeat=[]-->, belongsTo=parrnote 777 --, otherFeat=[]-->, belongsTo=parrnote 778 ++ -, otherFeat=[]-->, belongsTo=parrnote 779 -, otherFeat=[]-->, belongsTo=parrnote 780 +, otherFeat=[]-->, belongsTo=parrnote 781 -, otherFeat=[]-->, belongsTo=parrnote 782 +, otherFeat=[]-->, belongsTo=parrnote 783 -, otherFeat=[]-->, belongsTo=parrnote 784 +, otherFeat=[]-->, belongsTo=parrnote 785 -, otherFeat=[]-->, belongsTo=parrnote 786 + VSV-Borealin, otherFeat=[]-->, belongsTo=parrnote 787 Anti-GFP, otherFeat=[]-->, belongsTo=parrnote 788 Anti-VSV, otherFeat=[]-->, belongsTo=parrnote 789 GFP-INCENP47-920, otherFeat=[]-->, belongsTo=parrnote 790 123 4 5 678, otherFeat=[]-->, belongsTo=parrnote 791 GFP, otherFeat=[]-->, belongsTo=parrnote 792 CREST, otherFeat=[]-->, belongsTo=parrnote 793 DNA, otherFeat=[]-->, belongsTo=parrnote 794 Merge w/DNA, otherFeat=[]-->, belongsTo=parrnote 795 GFP, otherFeat=[]-->, belongsTo=parrnote 796 Borealin, otherFeat=[]-->, belongsTo=parrnote 797 CREST, otherFeat=[]-->, belongsTo=parrnote 798 IgG, otherFeat=[]-->, belongsTo=parrnote 799 AB, otherFeat=[]-->, belongsTo=parrnote 800 C, otherFeat=[]-->, belongsTo=parrnote 801 G, otherFeat=[]-->, belongsTo=parrnote 802 H, otherFeat=[]-->, belongsTo=parrnote 803 CPC targeting mediated by Survivin, otherFeat=[]-->, belongsTo=nota_cab_pie 804 G. Vader et al, otherFeat=[]-->, belongsTo=nota_cab_pie 805 EMBO reports VOL 7 | NO 1 | 2006, otherFeat=[]-->, belongsTo=nota_cab_pie 806 &2006 EUROPEAN MOLECULAR BIOLOGY ORGANIZATION, otherFeat=[]-->, belongsTo=nota_cab_pie 807 scientific report, otherFeat=[]-->, belongsTo=nota_cab_pie 808 90, otherFeat=[]-->, belongsTo=nota_cab_pie 809 cDNA library using a 50 primer containing a VSV tag and cloned, otherFeat=[]-->, belongsTo=parr 810 into pcDNA3.1 (INCENP) or into pCR3 containing an N-terminal, otherFeat=[]-->, belongsTo=parr 811 VSV tag (Borealin). RNAi-resistant INCENP and Borealin con-, otherFeat=[]-->, belongsTo=parr 812 structs were generated using the QuickChanges Mutagenesis kit, otherFeat=[]-->, belongsTo=parr 813 (Stratagene, La Jolla, CA, USA). For INCENP47?920, INCENP was, otherFeat=[]-->, belongsTo=parr 814 digested with EcoRI/XhoI. This fragment was cloned into pCR3, otherFeat=[]-->, belongsTo=parr 815 containing an N-terminal VSV tag. For INCENP1?47, INCENP was, otherFeat=[]-->, belongsTo=parr 816 digested with HindIII/EcoRI, and the product was cloned into, otherFeat=[]-->, belongsTo=parr 817 pcDNA3.1. For Survivin?INCENP47?920, Survivin was ligated to, otherFeat=[]-->, belongsTo=parr 818 the N terminus of INCENP47?920 after EcoRI digestion. For the, otherFeat=[]-->, belongsTo=parr 819 C-terminal GFP constructs, inserts were cloned into various, otherFeat=[]-->, belongsTo=parr 820 peGFP-N-vectors (Clontech, Mountain View, CA, USA). Note, otherFeat=[]-->, belongsTo=parr 821 that the INCENP?GFP constructs also contain an N-terminal, otherFeat=[]-->, belongsTo=parr 822 VSV tag. Histone H2B?GFP, Histone H2B?diHcRed (gifts from, otherFeat=[]-->, belongsTo=parr 823 Dr J. Ellenberg), Survivin siRNA, VSV?Survivin, pBABE-puro and, otherFeat=[]-->, belongsTo=parr 824 Spectrin?GFP have been described previously (Lens et al, 2003)., otherFeat=[]-->, belongsTo=parr 825 Cell culture and transfection. Human osteosarcoma U2OS and, otherFeat=[]-->, belongsTo=parr 826 human embryonic kidney 293 cells were cultured and synchro-, otherFeat=[]-->, belongsTo=parr 827 nized, as described (Lens et al, 2003). Cells were transfected using, otherFeat=[]-->, belongsTo=parr 828 the standard calcium phosphate protocol., otherFeat=[]-->, belongsTo=parr 829 Fig 3 | Survivin can target a functional chromosome passenger complex in the absence of Borealin, but interaction with inner centromere protein, otherFeat=[]-->, belongsTo=fig_caption 830 (INCENP) depends on Borealin. (A) U2OS cells were transfected with the indicated plasmids, puromycin was added to enrich for transfected cells and, otherFeat=[]-->, belongsTo=fig_caption 831 lysates were analysed by western blotting. (B?E) Cells were transfected with the indicated plasmids. (C) Cells grown on coverslips were transfected, otherFeat=[]-->, belongsTo=fig_caption 832 with mock or Borealin short interfering RNA (siRNA) plasmid and H2B?GFP (green fluorescent protein). Immunostainings were carried out with, otherFeat=[]-->, belongsTo=fig_caption 833 anti-Borealin, and the percentage of H2B?GFP-positive prometaphase cells in which Borealin localized on centromeres was scored. The number of cells, otherFeat=[]-->, belongsTo=fig_caption 834 counted per condition is indicated. (B,D) Cells were grown asynchronously for 60 h and collected for fluorescence-activated cell sorting (FACS), otherFeat=[]-->, belongsTo=fig_caption 835 analysis. (E) Taxol was added after thymidine release, and cells were collected for FACS analysis 18 h later. Mitotic percentages were determined, otherFeat=[]-->, belongsTo=fig_caption 836 by MPM-2 staining. (F) Cells grown on coverslips were transfected with Borealin siRNA plasmid and VSV?Survivin?INCENP47?920-sil?GFP., otherFeat=[]-->, belongsTo=fig_caption 837 Immunostainings were carried out with the indicated antibodies, and DNA was stained with 4,6-diamidino-2-phenylindole. Different colours used for, otherFeat=[]-->, belongsTo=fig_caption 838 the two merge pictures are indicated. (G) Human embryonic kidney 293 cells were transfected with 5 mg of the indicated constructs. After 48 h, cells, otherFeat=[]-->, belongsTo=fig_caption 839 were collected, immunoprecipitations were carried out with anti-GFP and samples were analysed by western blotting. (H) U2OS cells were transfected, otherFeat=[]-->, belongsTo=fig_caption 840 with the indicated plasmids. At 18 h after transfection, puromycin was added and 36 h later, cells were collected . Immunoprecipitations were carried, otherFeat=[]-->, belongsTo=fig_caption 841 out with anti-GFP and western blots were probed with the indicated antibodies. Scale bars, 5 mm., otherFeat=[]-->, belongsTo=fig_caption 842 b, otherFeat=[]-->, belongsTo=nota_cab_pie 843 Indirect centromere-, otherFeat=[]-->, belongsTo=?? 844 targeting domain, otherFeat=[]-->, belongsTo=?? 845 IN-box, otherFeat=[]-->, belongsTo=?? 846 147, otherFeat=[]-->, belongsTo=?? 847 920, otherFeat=[]-->, belongsTo=?? 848 INCENP, otherFeat=[]-->, belongsTo=?? 849 INCENP-sil, otherFeat=[]-->, belongsTo=?? 850 47, otherFeat=[]-->, belongsTo=?? 851 920, otherFeat=[]-->, belongsTo=?? 852 INCENP, otherFeat=[]-->, belongsTo=?? 853 INCENP47-920-sil, otherFeat=[]-->, belongsTo=?? 854 47, otherFeat=[]-->, belongsTo=?? 855 920, otherFeat=[]-->, belongsTo=?? 856 Survivin, otherFeat=[]-->, belongsTo=?? 857 INCENP, otherFeat=[]-->, belongsTo=?? 858 Survivin-INCENP47-920-sil, otherFeat=[]-->, belongsTo=?? 859 147, otherFeat=[]-->, belongsTo=?? 860 INCENP1-47, otherFeat=[]-->, belongsTo=?? 861 * *, otherFeat=[]-->, belongsTo=?? 862 * *, otherFeat=[]-->, belongsTo=?? 863 * *, otherFeat=[]-->, belongsTo=?? 864 Indirect centromere-, otherFeat=[]-->, belongsTo=?? 865 targeting domain, otherFeat=[]-->, belongsTo=?? 866 IN-box, otherFeat=[]-->, belongsTo=?? 867 147, otherFeat=[]-->, belongsTo=?? 868 920, otherFeat=[]-->, belongsTo=?? 869 INCENP, otherFeat=[]-->, belongsTo=?? 870 Survivin, otherFeat=[]-->, belongsTo=?? 871 Anaphase, otherFeat=[]-->, belongsTo=?? 872 (central spindle), otherFeat=[]-->, belongsTo=?? 873 Prometaphase, otherFeat=[]-->, belongsTo=?? 874 (centromeres), otherFeat=[]-->, belongsTo=?? 875 Localization, otherFeat=[]-->, belongsTo=?? 876 Interaction,, otherFeat=[]-->, belongsTo=?? 877 stabilization, otherFeat=[]-->, belongsTo=?? 878 RNAi, otherFeat=[]-->, belongsTo=?? 879 Aurora-B, otherFeat=[]-->, belongsTo=?? 880 Interaction,, otherFeat=[]-->, belongsTo=?? 881 stabilization, otherFeat=[]-->, belongsTo=?? 882 Borealin, otherFeat=[]-->, belongsTo=?? 883 Cytokinesis, otherFeat=[]-->, belongsTo=?? 884 (midbody), otherFeat=[]-->, belongsTo=?? 885 A, otherFeat=[]-->, belongsTo=?? 886 B, otherFeat=[]-->, belongsTo=?? 887 Fig 4 | Overview of inner centromere protein constructs and model. (A) Schematic representation of inner centromere protein (INCENP) constructs., otherFeat=[]-->, belongsTo=fig_caption 888 Survivin and Aurora-B binding domains are depicted. Introduced RNA interference (RNAi) silent mutations are shown. (B) Model showing the, otherFeat=[]-->, belongsTo=fig_caption 889 proposed upstream targeting role of Survivin in the chromosome passenger complex., otherFeat=[]-->, belongsTo=fig_caption 890 CPC targeting mediated by Survivin, otherFeat=[]-->, belongsTo=nota_cab_pie 891 G. Vader et al, otherFeat=[]-->, belongsTo=nota_cab_pie 892 &2006 EUROPEAN MOLECULAR BIOLOGY ORGANIZATION, otherFeat=[]-->, belongsTo=nota_cab_pie 893 EMBO reports VOL 7 | NO 1 | 2006, otherFeat=[]-->, belongsTo=nota_cab_pie 894 scientific report, otherFeat=[]-->, belongsTo=nota_cab_pie 895 91, otherFeat=[]-->, belongsTo=nota_cab_pie 896 Flow cytometry and time-lapse microscopy. The percentage of, otherFeat=[]-->, belongsTo=parr 897 mitotic cells (MPM-2 positivity) and cell cycle distribution of, otherFeat=[]-->, belongsTo=parr 898 spectrin?GFP-transfected cells were determined by flow cytometry,, otherFeat=[]-->, belongsTo=parr 899 as described (Smits et al, 2000). H2B?GFP-expressing cells were, otherFeat=[]-->, belongsTo=parr 900 followed by time-lapse microscopy, as described (Lens et al, 2003)., otherFeat=[]-->, belongsTo=parr 901 Immunoblotting, immunoprecipitation and immunofluorescence., otherFeat=[]-->, belongsTo=parr 902 Immunoblotting was carried out as described (Smits et al, 2000)., otherFeat=[]-->, belongsTo=parr 903 For immunoprecipitation, cells were lysed in E1A lysis buffer with, otherFeat=[]-->, belongsTo=parr 904 protease inhibitors (Completes, Roche, Indianapolis, IN, USA) for, otherFeat=[]-->, belongsTo=parr 905 30 min at 4 1C (Smits et al, 2000). GFP-tagged proteins were, otherFeat=[]-->, belongsTo=parr 906 immunoprecipitated with 3 mg anti-GFP precoupled to protein G?, otherFeat=[]-->, belongsTo=parr 907 Sepharose (Amersham Biosciences, Pittsburg, CA, USA). Immuno-, otherFeat=[]-->, belongsTo=parr 908 fluorescence was carried out as described (Lens et al, 2003). DNA, otherFeat=[]-->, belongsTo=parr 909 was stained with 4,6-diamidino-2-phenylindole., otherFeat=[]-->, belongsTo=parr 910 Supplementary information is available at EMBO reports online, otherFeat=[]-->, belongsTo=parr 911 (http://www.emboreports.org)., otherFeat=[]-->, belongsTo=parr 912 ACKNOWLEDGEMENTS, otherFeat=[]-->, belongsTo=parrnote 913 We thank B.v.d. Weerdt, M.v. Vugt and G. Kops for comments on, otherFeat=[]-->, belongsTo=parrnote 914 the manuscript, T.v. Harn for technical support and S. Taylor and, otherFeat=[]-->, belongsTo=parrnote 915 H. Funabiki for the gift of reagents. This work was supported by, otherFeat=[]-->, belongsTo=parrnote 916 the Dutch Cancer Society (NKI 2002-2764)., otherFeat=[]-->, belongsTo=parrnote 917 REFERENCES, otherFeat=[]-->, belongsTo=parrnote 918 Adams RR, Wheatley SP, Gouldsworthy AM, Kandels-Lewis SE, Carmena M,, otherFeat=[]-->, belongsTo=parrnote 919 Smythe C, Gerloff DL, Earnshaw WC (2000) INCENP binds the Aurora-, otherFeat=[]-->, belongsTo=parrnote 920 related kinase AIRK2 and is required to target it to chromosomes, the, otherFeat=[]-->, belongsTo=parrnote 921 central spindle and cleavage furrow. Curr Biol 10: 1075?1078, otherFeat=[]-->, belongsTo=parrnote 922 Ainsztein AM, Kandels-Lewis SE, Mackay AM, Earnshaw WC (1998) INCENP, otherFeat=[]-->, belongsTo=parrnote 923 centromere and spindle targeting: identification of essential conserved, otherFeat=[]-->, belongsTo=parrnote 924 motifs and involvement of heterochromatin protein HP1. J Cell Biol 143:, otherFeat=[]-->, belongsTo=parrnote 925 1763?1774, otherFeat=[]-->, belongsTo=parrnote 926 Biggins S, Murray AW (2001) The budding yeast protein kinase Ipl1/Aurora, otherFeat=[]-->, belongsTo=parrnote 927 allows the absence of tension to activate the spindle checkpoint. Genes, otherFeat=[]-->, belongsTo=parrnote 928 Dev 15: 3118?3129, otherFeat=[]-->, belongsTo=parrnote 929 Ditchfield C, Johnson VL, Tighe A, Ellston R, Haworth C, Johnson T, Mortlock, otherFeat=[]-->, belongsTo=parrnote 930 A, Keen N, Taylor SS (2003) Aurora B couples chromosome alignment, otherFeat=[]-->, belongsTo=parrnote 931 with anaphase by targeting BubR1, Mad2, and Cenp-E to kinetochores., otherFeat=[]-->, belongsTo=parrnote 932 J Cell Biol 161: 267?280, otherFeat=[]-->, belongsTo=parrnote 933 Gassmann R, Carvalho A, Henzing AJ, Ruchaud S, Hudson DF, Honda R,, otherFeat=[]-->, belongsTo=parrnote 934 Nigg EA, Gerloff DL, Earnshaw WC (2004) Borealin: a novel, otherFeat=[]-->, belongsTo=parrnote 935 chromosomal passenger required for stability of the bipolar mitotic, otherFeat=[]-->, belongsTo=parrnote 936 spindle. J Cell Biol 166: 179?191, otherFeat=[]-->, belongsTo=parrnote 937 Hauf S, Cole RW, LaTerra S, Zimmer C, Schnapp G, Walter R, Heckel A,, otherFeat=[]-->, belongsTo=parrnote 938 van Meel J, Rieder CL, Peters JM (2003) The small molecule Hesperadin, otherFeat=[]-->, belongsTo=parrnote 939 reveals a role for Aurora B in correcting kinetochore?microtubule, otherFeat=[]-->, belongsTo=parrnote 940 attachment and in maintaining the spindle assembly checkpoint. J Cell, otherFeat=[]-->, belongsTo=parrnote 941 Biol 161: 281?294, otherFeat=[]-->, belongsTo=parrnote 942 Honda R, Korner R, Nigg EA (2003) Exploring the functional interactions, otherFeat=[]-->, belongsTo=parrnote 943 between Aurora B, INCENP, and survivin in mitosis. Mol Biol Cell 14:, otherFeat=[]-->, belongsTo=parrnote 944 3325?3341, otherFeat=[]-->, belongsTo=parrnote 945 Kaitna S, Mendoza M, Jantsch-Plunger V, Glotzer M (2000) Incenp and, otherFeat=[]-->, belongsTo=parrnote 946 an aurora-like kinase form a complex essential for chromosome, otherFeat=[]-->, belongsTo=parrnote 947 segregation and efficient completion of cytokinesis. Curr Biol 10:, otherFeat=[]-->, belongsTo=parrnote 948 1172?1181, otherFeat=[]-->, belongsTo=parrnote 949 Lampson MA, Renduchitala K, Khodjakov A, Kapoor TM (2004) Correcting, otherFeat=[]-->, belongsTo=parrnote 950 improper chromosome?spindle attachments during cell division. Nat Cell, otherFeat=[]-->, belongsTo=parrnote 951 Biol 6: 232?237, otherFeat=[]-->, belongsTo=parrnote 952 Lens SM, Medema RH (2003) The survivin/Aurora B complex: its role in, otherFeat=[]-->, belongsTo=parrnote 953 coordinating tension and attachment. Cell Cycle 2: 507?510, otherFeat=[]-->, belongsTo=parrnote 954 Lens SM, Wolthuis RM, Klompmaker R, Kauw J, Agami R, Brummelkamp T,, otherFeat=[]-->, belongsTo=parrnote 955 Kops G, Medema RH (2003) Survivin is required for a sustained, otherFeat=[]-->, belongsTo=parrnote 956 spindle checkpoint arrest in response to lack of tension. EMBO J 22:, otherFeat=[]-->, belongsTo=parrnote 957 2934?2947, otherFeat=[]-->, belongsTo=parrnote 958 Nicklas RB (1997) How cells get the right chromosomes. Science 275:, otherFeat=[]-->, belongsTo=parrnote 959 632?637, otherFeat=[]-->, belongsTo=parrnote 960 Romano A, Guse A, Krascenicova I, Schnabel H, Schnabel R, Glotzer M, otherFeat=[]-->, belongsTo=parrnote 961 (2003) CSC-1: a subunit of the Aurora B kinase complex that binds to the, otherFeat=[]-->, belongsTo=parrnote 962 survivin-like protein BIR-1 and the incenp-like protein ICP-1. J Cell Biol, otherFeat=[]-->, belongsTo=parrnote 963 161: 229?236, otherFeat=[]-->, belongsTo=parrnote 964 Sampath SC, Ohi R, Leismann O, Salic A, Pozniakovski A, Funabiki H, otherFeat=[]-->, belongsTo=parrnote 965 (2004) The chromosomal passenger complex is required for chromatin-, otherFeat=[]-->, belongsTo=parrnote 966 induced microtubule stabilization and spindle assembly. Cell 118:, otherFeat=[]-->, belongsTo=parrnote 967 187?202, otherFeat=[]-->, belongsTo=parrnote 968 Severson AF, Hamill DR, Carter JC, Schumacher J, Bowerman B (2000), otherFeat=[]-->, belongsTo=parrnote 969 The aurora-related kinase AIR-2 recruits ZEN-4/CeMKLP1 to the mitotic, otherFeat=[]-->, belongsTo=parrnote 970 spindle at metaphase and is required for cytokinesis. Curr Biol 10:, otherFeat=[]-->, belongsTo=parrnote 971 1162?1171, otherFeat=[]-->, belongsTo=parrnote 972 Smits VA, Klompmaker R, Arnaud L, Rijksen G, Nigg EA, Medema RH (2000), otherFeat=[]-->, belongsTo=parrnote 973 Polo-like kinase-1 is a target of the DNA damage checkpoint. Nat Cell, otherFeat=[]-->, belongsTo=parrnote 974 Biol 2: 672?676, otherFeat=[]-->, belongsTo=parrnote 975 Tanaka TU (2002) Bi-orienting chromosomes on the mitotic spindle. Curr, otherFeat=[]-->, belongsTo=parrnote 976 Opin Cell Biol 14: 365?371, otherFeat=[]-->, belongsTo=parrnote 977 Tanaka TU, Rachidi N, Janke C, Pereira G, Galova M, Schiebel E, Stark MJ,, otherFeat=[]-->, belongsTo=parrnote 978 Nasmyth K (2002) Evidence that the Ipl1?Sli15 (Aurora kinase-INCENP), otherFeat=[]-->, belongsTo=parrnote 979 complex promotes chromosome bi-orientation by altering kinetochore?, otherFeat=[]-->, belongsTo=parrnote 980 spindle pole connections. Cell 108: 317?329, otherFeat=[]-->, belongsTo=parrnote 981 Vagnarelli P, Earnshaw WC (2004) Chromosomal passengers: the, otherFeat=[]-->, belongsTo=parrnote 982 four-dimensional regulation of mitotic events. Chromosoma 113:, otherFeat=[]-->, belongsTo=parrnote 983 211?222, otherFeat=[]-->, belongsTo=parrnote 984 Wheatley SP, Carvalho A, Vagnarelli P, Earnshaw WC (2001) INCENP is, otherFeat=[]-->, belongsTo=parrnote 985 required for proper targeting of Survivin to the centromeres and the, otherFeat=[]-->, belongsTo=parrnote 986 anaphase spindle during mitosis. Curr Biol 11: 886?890, otherFeat=[]-->, belongsTo=parrnote 987 Wheatley SP, Henzing AJ, Dodson H, Khaled W, Earnshaw WC (2004), otherFeat=[]-->, belongsTo=parrnote 988 Aurora-B phosphorylation in vitro identifies a residue of survivin that is, otherFeat=[]-->, belongsTo=parrnote 989 essential for its localization and binding to inner centromere protein, otherFeat=[]-->, belongsTo=parrnote 990 (INCENP) in vivo. J Biol Chem 279: 5655?5660, otherFeat=[]-->, belongsTo=parrnote 991 Yasui Y, Urano T, Kawajiri A, Nagata K, Tatsuka M, Saya H, Furukawa K,, otherFeat=[]-->, belongsTo=parrnote 992 Takahashi T, Izawa I, Inagaki M (2004) Autophosphorylation of a newly, otherFeat=[]-->, belongsTo=parrnote 993 identified site of Aurora-B is indispensable for cytokinesis. J Biol Chem, otherFeat=[]-->, belongsTo=parrnote 994 279: 12997?13003, otherFeat=[]-->, belongsTo=parrnote 995 CPC targeting mediated by Survivin, otherFeat=[]-->, belongsTo=nota_cab_pie 996 G. Vader et al, otherFeat=[]-->, belongsTo=nota_cab_pie 997 EMBO reports VOL 7 | NO 1 | 2006, otherFeat=[]-->, belongsTo=nota_cab_pie 998 &2006 EUROPEAN MOLECULAR BIOLOGY ORGANIZATION, otherFeat=[]-->, belongsTo=nota_cab_pie 999 scientific report, otherFeat=[]-->, belongsTo=nota_cab_pie 1000 92, otherFeat=[]-->, belongsTo=nota_cab_pie ============================== 0 Survivin mediates targeting of the chromosomal passenger complex to the centromere and midbody-->id=0, page=0, size=33, fam=Times, col=#000000, type=title, textLines=2--->[]--->font_title Survivin mediates ta>>>ntromere and midbody 1 Gerben Vaderw,Jos J.W. Kauw,Rene´ H. Medemaw & Susanne M.A. Lens+w-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_note Gerben Vaderw,Jos J.>>> Susanne M.A. Lens+w 2 Division of Molecular Biology, Netherlands Cancer Institute, Amsterdam, The Netherlands-->id=4, page=0, size=12, fam=Times, col=#000000, type=title, textLines=10--->[]--->font_note Division of Molecula>>>dam, The Netherlands 3 The chromosomal passenger complex (CPC) coordinates chromosomal and cytoskeletal events of mitosis. The enzymatic core of this complex (Aurora-B) is guided through the mitotic cell by its companion chromosomal passenger proteins, inner centromere protein (INCENP), Survivin and Borealin/Dasra-B, thereby allowing it to act at the right place at the right time. Here, we addressed the individual contributions of INCENP, Survivin and Borealin to the proper functioning of this complex. We show that INCENP has an important role in stabilizing the complex, and that Borealin acts to promote binding of Survivin to INCENP. Importantly, when Survivin is directly fused to INCENP, this hybrid can restore CPC function at the centromeres and midbody, even in the absence of Borealin and the centromere-targeting domain of INCENP. Thus, Survivin is an important mediator of centromere and midbody docking of Aurora-B during mitosis.-->id=5, page=0, size=11, fam=Times, col=#000000, type=parr, textLines=294--->[]--->font_parr The chromosomal pass>>>ra-B during mitosis. 4 Keywords: cytokinesis; spindle checkpoint-->id=5, page=0, size=11, fam=Times, col=#000000, type=parr, textLines=294--->[]--->font_parr Keywords: cytokinesi>>>; spindle checkpoint 5 EMBO reports (2006) 7, 85­92. doi:10.1038/sj.embor.7400562-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr EMBO reports (2006) >>>038/sj.embor.7400562 6 INTRODUCTION-->id=4, page=0, size=12, fam=Times, col=#000000, type=title, textLines=10--->[]--->font_title INTRODUCTION>>>INTRODUCTION 7 Proper mitosis requires accurate nuclear division, followed by cytoplasmic partitioning into two daughter cells during cytokinesis. Nuclear division is monitored by the spindle assembly checkpoint (SAC), which is an intrinsic cell-cycle checkpoint that prevents the onset of anaphase until all sister chromatids have attained proper attachment to the mitotic spindle (Nicklas, 1997). To satisfy this checkpoint, kinetochores of paired sister chromatids have to attach in a bipolar manner, creating tension (Tanaka, 2002). Aurora-B kinase is essential to resolve naturally occurring monopolar or syntelic microtubule­kinetochore attachments (Tanaka et al, 2002; Lampson et al, 2004), and to communicate a lack of bipolarity (that is, tension) to the core SAC (Biggins & Murray, 2001; Lens & Medema, 2003). Additionally, in several organisms, interference with Aurora-B leads to a failure of cytokinesis (Kaitna et al, 2000; Severson et al, 2000; Ditchfield et al, 2003; Hauf et al, 2003).-->id=5, page=0, size=11, fam=Times, col=#000000, type=parr, textLines=294--->[]--->font_parr Proper mitosis requi>>>; Hauf et al, 2003). 8 Aurora-B acts together with Survivin, inner centromere protein (INCENP) and Borealin/Dasra-B (hereafter referred to as Borealin). These proteins physically interact and show a typical chromosomal passenger localization pattern during mitosis--at the inner centromere in (pro)metaphase, on the central spindle during anaphase and at the midbody during cytokinesis (Vagnarelli & Earnshaw, 2004). Interference with Survivin, INCENP or Borealin function disrupts Aurora-B localization and leads to similar mitotic defects, as observed after interference with Aurora-B function (Vagnarelli & Earnshaw, 2004, and references therein). Aurora-B is activated at the G2­M transition and remains active until mitotic exit (Yasui et al, 2004). Thus, it is likely that the specific functions of Aurora-B are mainly determined by its dynamic localization pattern. Until now, INCENP has been proposed to be the targeting module of the complex (Ainsztein et al, 1998), but specific functions for Survivin and Borealin in the chromosome passenger complex (CPC) have yet to be determined.-->id=5, page=0, size=11, fam=Times, col=#000000, type=parr, textLines=294--->[]--->font_parr Aurora-B acts togeth>>>et to be determined. 9 RESULTS AND DISCUSSION-->id=4, page=0, size=12, fam=Times, col=#000000, type=title, textLines=10--->['U']--->font_title RESULTS AND DISCUSSI>>>SULTS AND DISCUSSION 10 An RNAi-complementation to study CPC function-->id=4, page=0, size=12, fam=Times, col=#000000, type=title, textLines=10--->[]--->font_title An RNAi-complementat>>>o study CPC function 11 We developed an INCENP RNA interference (RNAi) complementation system to study the role of INCENP in the CPC. Endogenous INCENP was knocked down by vector-driven short interfering RNA (siRNA; Fig 1A; supplementary Fig 1A­C online) and cells were reconstituted with an INCENP complementary DNA harbouring two silent mutations in the siRNA-targeting region, rendering it insensitive to the siRNA (Lens et al, 2003). INCENPdepleted cells showed the typical `chromosome passenger deficiency' phenotype: defects in chromosome alignment and segregation, and a failure to undergo cytokinesis (supplementary Fig 1A­C online; Honda et al, 2003). Additionally, Aurora-B and BubR1 were mislocalized, and the INCENP-depleted cells failed to maintain an active SAC in response to Taxol (supplementary Fig 1B,D,E online). All these mitotic defects could be reverted by expression of a full-length INCENP containing two silent mutations (VSV­INCENP-sil; Figs 1C­E,2F; supplementary Fig 2B,C online; for INCENP constructs used, see Fig 4A), confirming the specificity of the siRNA and the functionality of the complementation approach.-->id=5, page=0, size=11, fam=Times, col=#000000, type=parr, textLines=294--->[]--->font_parr We developed an INCE>>>ementation approach. 12 Received 27 May 2005; revised 20 September 2005; accepted 21 September 2005; published online 21 October 2005-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Received 27 May 2005>>>line 21 October 2005 13 +Corresponding author. Tel: þ 3130 253 9728; Fax: þ 3130 253 8479; E-mail: s.m.a.lens@med.uu.nl-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +Corresponding autho>>>s.m.a.lens@med.uu.nl 14 Division of Molecular Biology, Netherlands Cancer Institute, Plesmanlaan 21, 1066 CX Amsterdam, The Netherlands wPresent address: Department of Medical Oncology, University Medical Center, Str. 2.103 Universiteitsweg 100, 3584 CG Utrecht, The Netherlands-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Division of Molecula>>>cht, The Netherlands 15 &2006 EUROPEAN MOLECULAR BIOLOGY ORGANIZATION-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note &2006 EUROPEAN MOLEC>>>BIOLOGY ORGANIZATION 16 EMBO reports VOL 7 | NO 1 | 2006-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note EMBO reports VOL 7 |>>> VOL 7 | NO 1 | 2006 17 scientificreport-->id=8, page=0, size=29, fam=Times, col=#dedede, type=title, textLines=1--->[]--->font_note scientificreport>>>scientificreport 18 scientific report-->id=9, page=0, size=72, fam=Times, col=#008a33, type=title, textLines=1--->[]--->font_note scientific report>>>scientific report 19 85-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note 85>>>85 20 CPC formation is crucial for protein stability-->id=4, page=0, size=12, fam=Times, col=#000000, type=title, textLines=10--->[]--->font_title CPC formation is cru>>>or protein stability 21 In line with earlier observations (Honda et al, 2003), total protein levels of Aurora-B and Survivin were significantly reduced after INCENP depletion (Fig 1A). This reduction was interpreted as an indirect consequence of a failed cell division followed by a cellcycle arrest in a tetraploid G1 state (Honda et al, 2003). However, we found that INCENP-depleted cells already failed to accumulate these proteins during passage through G2 (Fig 1B). Moreover, mitotic cells lacking INCENP also showed reduced Aurora-B and Survivin levels (Fig 1B,H, lane 2), which indicates that the effect of INCENP depletion on protein stability is more direct.-->id=5, page=0, size=11, fam=Times, col=#000000, type=parr, textLines=294--->[]--->font_parr In line with earlier>>>lity is more direct. 22 By introducing different INCENP truncation mutants into INCENP-depleted cells, we could show that a mutant lacking the amino-terminal `centromere-targeting' domain (VSV­ INCENP47­920-sil; Fig 4A) restored Aurora-B levels, but failed to stabilize Survivin (Fig 1G, lane 4). In line with previous observations (Ainsztein et al, 1998), this mutant failed to concentrate at centromeres during prometaphase and to transfer to the midbody following the onset of anaphase (supplementary Fig 2B,C online). Consequently, this mutant was unable to restore a SAC-mediated arrest in response to Taxol and to overcome the cytokinesis defect in INCENP-depleted cells (Fig 1D,E). Because of the presence of the carboxy-terminal Aurora-B interaction domain (IN-box; Adams et al, 2000), INCENP47­920-sil was able to bind to Aurora-B. In contrast, this truncation mutant failed to interact with Survivin (Fig 1F, lane 3). Conversely, a construct expressing only-->id=5, page=0, size=11, fam=Times, col=#000000, type=parr, textLines=294--->[]--->font_parr By introducing diffe>>>ruct expressing only 23 the first N-terminal 47 amino acids of INCENP (INCENP1­47;-->id=785, page=1, size=6, fam=Times, col=#000000, type=note, textLines=1--->[]--->font_note the first N-terminal>>> INCENP (INCENP1­47; 24 Fig 4A) and thus harbouring the centromere-localization domain was able to bind to Survivin (Fig 1F, lane 4), but failed to stabilize it (Fig 1G, lane 5). Thus, this domain is both necessary and sufficient for interaction with Survivin, but the presence of Aurora-B in the complex may be needed for stabilization of Survivin. Interestingly, Survivin is an in vivo substrate of Aurora-B (Wheatley et al, 2004), but whether this phosphorylation affects protein stability is unknown. In contrast, the presence of Survivin in the complex was not essential to stabilize Aurora-B, because we found that a complex of Aurora-B and a truncated INCENP, although lacking Survivin, could exist (Fig 1F,G). However, whereas Aurora-B protein levels could be restored by expression of INCENP47­920-sil, phosphorylation of serine-10 Histone-H3 in mitotic INCENP-depleted cells remained impaired (Fig 1H, lane 4). Thus, stabilization of Aurora-B by INCENP47­920-sil is not sufficient to mediate Histone-H3 phosphorylation. This suggests that mitotic phosphorylation of Histone-H3 on serine-10 by Aurora-B requires either the direct presence of Survivin in the complex or centromeric localization of the kinase.-->id=5, page=0, size=11, fam=Times, col=#000000, type=parr, textLines=294--->[]--->font_parr Fig 4A) and thus har>>>ation of the kinase. 25 Survivin mediates mitotic localization of the CPC-->id=4, page=0, size=12, fam=Times, col=#000000, type=title, textLines=10--->[]--->font_title Survivin mediates mi>>>alization of the CPC 26 Although INCENP contains a highly conserved `centromeretargeting' domain in its N-terminus (Ainsztein et al, 1998), the mechanism by which this domain mediates centromeric localization remains elusive. As INCENP interacts with Survivin by means of this N-terminal domain (Fig 1F), it is possible that Survivin mediates mitotic localization of the CPC. To test this, a chimeric protein that is refractory to both INCENP and Survivin RNAi (Fig 2A; data not shown) was generated, in which the centromeretargeting domain in INCENP was replaced by Survivin (SurvivinINCENP47­920-sil; Fig 4A). This fusion localized normally during mitosis, in both an INCENP-depleted and a combined INCENP/ Survivin-depleted background (Fig 2D,G, arrows). This chimaera was also able to localize Aurora-B during mitosis (Fig 2E,F), restore serine-10 Histone-H3 phosphorylation (supplementary Fig 2D online) and restore CPC function, as expression of the chimaera in INCENP-, Survivin- or combined INCENP/Survivindepleted cells rescued SAC function and the proper execution of cytokinesis (Fig 2B,C).-->id=5, page=0, size=11, fam=Times, col=#000000, type=parr, textLines=294--->[]--->font_parr Although INCENP cont>>>okinesis (Fig 2B,C). 27 To obtain further evidence that Survivin can serve as a determining factor in localizing the CPC, we analysed the location of INCENP1­47 in the absence or presence of endogenous Survivin. INCENP1­47­GFP (green fluorescent protein) localized to centromeres during mitosis in control cells (Fig 2H, upper panel, see arrows), but failed to concentrate at centromeres in the absence of endogenous Survivin and instead localized diffusely in the cytoplasm during mitosis (Fig 2G, lower panel, see arrows), indicating that the centromere-targeting domain in INCENP requires at least the presence of Survivin to localize to centromeres. Taken together, these results show that Survivin is an important mediator of mitotic localization of the CPC.-->id=5, page=0, size=11, fam=Times, col=#000000, type=parr, textLines=294--->[]--->font_parr To obtain further ev>>>lization of the CPC. 28 Survivin can target the CPC in the absence of Borealin-->id=4, page=0, size=12, fam=Times, col=#000000, type=title, textLines=10--->[]--->font_title Survivin can target >>> absence of Borealin 29 Recently, it was suggested that Borealin has a role in determining centromeric localization of the CPC (Gassmann et al, 2004). As our results suggest that targeting of the Survivin/INCENP/Aurora-B complex is mediated by Survivin, we explored whether this depended on the presence of Borealin. We depleted Borealin using siRNA (Fig 3A­C) and introduced the Survivin­INCENP chimaera into these cells. Interestingly, expression of this chimaera in Borealin-depleted cells significantly restored CPC-->id=5, page=0, size=11, fam=Times, col=#000000, type=parr, textLines=294--->[]--->font_parr Recently, it was sug>>>icantly restored CPC 30 Fig 1 | Protein­protein interactions within and stability of the chromosomal passenger complex. U2OS cells were transfected with 10 mg mock or inner centromere protein (INCENP) short interfering RNA (siRNA) vector combined with pBABE-puro. (A) Puromycin was added to enrich for transfected cells, and lysates for western blotting were prepared. (B) Transfected cells were released from a thymidine block and, at indicated time points, lysates were prepared for western blotting. N indicates nocodazole treatment for 24 h to enrich for mitotic cells. (C)5 mg of the indicated VSV-tagged plasmids was transfected in combination with the siRNA plasmids and pBABE-puro. After puromycin selection, lysates were analysed by western blotting. (D) Similar to (C), after release from the thymidine block, cells were treated with Taxol for 18 h and collected for fluorescence-activated cell sorting (FACS) analysis. Mitotic percentages were determined by staining the cells with the MPM-2 antibody that specifically recognizes mitotic phosphoepitopes. (E) Similar to (C), 60 h after transfection, cells were collected for FACS analysis. (F) Human embryonic kidney (HEK) 293 cells were transfected with 5 mg of the indicated green fluorescent protein (GFP)-tagged constructs. After 48 h, cells were collected , immunoprecipitations were carried out with anti-GFP and samples were analysed by western blotting. The presence of GFP protein (arrowhead) is due to the presence of an additional transcription site in the plasmids used. (G) Similar to (C). Note that INCENP1­47 contains both an amino-terminal VSV tag and a carboxyterminal GFP tag. The asterisk denotes an aspecific band recognized by the anti-VSV monoclonal antibody. (H) Similar to (C). At 24 h after puromycin selection, nocodazole was added to the cells for 18 h. Mitotic cells were obtained by shake-off and lysates were analysed by western blotting.-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_capfig Fig 1 | Protein­prot>>>by western blotting. 31 c-->id=5, page=0, size=11, fam=Times, col=#000000, type=parr, textLines=294--->[]--->font_capfig c>>>c 32 CPC targeting mediated by Survivin-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_note CPC targeting mediat>>>mediated by Survivin 33 G. Vader et al-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_note G. Vader et al>>>G. Vader et al 34 EMBO reports VOL 7 | NO 1 | 2006-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note EMBO reports VOL 7 |>>> VOL 7 | NO 1 | 2006 35 &2006 EUROPEAN MOLECULAR BIOLOGY ORGANIZATION-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note &2006 EUROPEAN MOLEC>>>BIOLOGY ORGANIZATION 36 scientific report-->id=787, page=1, size=36, fam=Times, col=#008a33, type=title, textLines=7--->[]--->font_note scientific report>>>scientific report 37 86-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note 86>>>86 38 function, as judged by restoration of mitotic arrest in response to Taxol and a reduction in the percentage of polyploid cells that were observed after depletion of Borealin (Fig 3D,E). Expression of neither Survivin nor INCENP individually was sufficient to restore CPC function in Borealin-depleted cells (Fig 3E; data not shown). In line with these functional data, the chimaera was found to localize to centromeres and the midbody in Borealin-depleted cells (Fig 3F) and to restore Aurora-B localization (supplementary-->id=5, page=0, size=11, fam=Times, col=#000000, type=parr, textLines=294--->[]--->font_parr function, as judged >>>ation (supplementary 39 0 9 12 15 18 24 N-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 0 9 12 15 18 24 N>>>0 9 12 15 18 24 N 40 Mock siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mock siRNA>>>Mock siRNA 41 INCENP siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr INCENP siRNA>>>INCENP siRNA 42 0 9 12 15 18 24 N-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 0 9 12 15 18 24 N>>>0 9 12 15 18 24 N 43 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 44 INCENP1-47-GFP-->id=786, page=1, size=5, fam=Times, col=#000000, type=parrnote, textLines=23--->[]--->font_parr INCENP1-47-GFP>>>INCENP1-47-GFP 45 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 46 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 47 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 48 INCENP47-920-sil-GFP-->id=786, page=1, size=5, fam=Times, col=#000000, type=parrnote, textLines=23--->[]--->font_parr INCENP47-920-sil-GFP>>>INCENP47-920-sil-GFP 49 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 50 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 51 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 52 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 53 INCENP-sil-GFP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr INCENP-sil-GFP>>>INCENP-sil-GFP 54 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 55 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 56 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 57 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 58 Empty vector-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Empty vector>>>Empty vector 59 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 60 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 61 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 62 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 63 Total lysate-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Total lysate>>>Total lysate 64 IP: Anti-GFP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr IP: Anti-GFP>>>IP: Anti-GFP 65 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 66 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 67 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 68 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 69 + --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr + ->>>+ - 70 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 71 - +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr - +>>>- + 72 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 73 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 74 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 75 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 76 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 77 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 78 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 79 Hours-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Hours>>>Hours 80 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 81 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 82 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 83 ++-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ++>>>++ 84 ++-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ++>>>++ 85 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 86 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 87 ---->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr -->>>-- 88 ++-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ++>>>++ 89 ---->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr -->>>-- 90 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 91 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 92 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 93 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 94 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 95 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 96 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 97 Mock siRNA INCENP siRNA Empty vector VSV -INCENP-sil-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mock siRNA INCENP si>>>ctor VSV -INCENP-sil 98 VSV-INCENP47-920-sil-->id=786, page=1, size=5, fam=Times, col=#000000, type=parrnote, textLines=23--->[]--->font_parr VSV-INCENP47-920-sil>>>VSV-INCENP47-920-sil 99 Mitotic shake-off (nocodazole)-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mitotic shake-off (n>>>ake-off (nocodazole) 100 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 101 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 102 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 103 ++-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ++>>>++ 104 ++-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ++>>>++ 105 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 106 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 107 ---->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr -->>>-- 108 ++-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ++>>>++ 109 -+ --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr -+ ->>>-+ - 110 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 111 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 112 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 113 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 114 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 115 Mock siRNA INCENP siRNA Empty vector VSV-INCENP-sil-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mock siRNA INCENP si>>>ector VSV-INCENP-sil 116 VSV-INCENP47-920-sil-->id=786, page=1, size=5, fam=Times, col=#000000, type=parrnote, textLines=23--->[]--->font_parr VSV-INCENP47-920-sil>>>VSV-INCENP47-920-sil 117 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 118 + --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr + ->>>+ - 119 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 120 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 121 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 122 ---->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr -->>>-- 123 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 124 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 125 VSV-INCENP1-47-GFP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr VSV-INCENP1-47-GFP>>>VSV-INCENP1-47-GFP 126 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 127 INCENPsiRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr INCENPsiRNA>>>INCENPsiRNA 128 Mock-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mock>>>Mock 129 siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr siRNA>>>siRNA 130 GFP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr GFP>>>GFP 131 Mock siRNA INCENP siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mock siRNA INCENP si>>>k siRNA INCENP siRNA 132 Anti-VSV-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-VSV>>>Anti-VSV 133 Anti-Cdk6-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Cdk6>>>Anti-Cdk6 134 VSV-INCENP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr VSV-INCENP>>>VSV-INCENP 135 VSV-INCENP-sil-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr VSV-INCENP-sil>>>VSV-INCENP-sil 136 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 137 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 138 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 139 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 140 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 141 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 142 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 143 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 144 INCENP siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr INCENP siRNA>>>INCENP siRNA 145 + VSV-INCENP-sil-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr + VSV-INCENP-sil>>>+ VSV-INCENP-sil 146 4n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 4n>>>4n 147 2n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 2n>>>2n 148 INCENP siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr INCENP siRNA>>>INCENP siRNA 149 + VSV-INCENP47-920-sil-->id=786, page=1, size=5, fam=Times, col=#000000, type=parrnote, textLines=23--->[]--->font_parr + VSV-INCENP47-920-s>>>VSV-INCENP47-920-sil 150 8n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 8n>>>8n 151 VSV-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr VSV>>>VSV 152 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 153 INCENP-sil VSV-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr INCENP-sil VSV>>>INCENP-sil VSV 154 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 155 INCENP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr INCENP>>>INCENP 156 47-920-->id=786, page=1, size=5, fam=Times, col=#000000, type=parrnote, textLines=23--->[]--->font_parr 47-920>>>47-920 157 -sil-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr -sil>>>-sil 158 Emptyvector-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Emptyvector>>>Emptyvector 159 Mitotic-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mitotic>>>Mitotic 160 cells-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr cells>>>cells 161 (%)-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr (%)>>>(%) 162 40-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 40>>>40 163 20-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 20>>>20 164 0-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 0>>>0 165 Mock siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mock siRNA>>>Mock siRNA 166 INCENP siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr INCENP siRNA>>>INCENP siRNA 167 +Taxol-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +Taxol>>>+Taxol 168 10.1%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 10.1%>>>10.1% 169 25.8%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 25.8%>>>25.8% 170 12.0%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 12.0%>>>12.0% 171 19.3%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 19.3%>>>19.3% 172 Mock siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mock siRNA>>>Mock siRNA 173 INCENP siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr INCENP siRNA>>>INCENP siRNA 174 12 3 4-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 12 3 4>>>12 3 4 175 5 6-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 5 6>>>5 6 176 7 8-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 7 8>>>7 8 177 12-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 12>>>12 178 3-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 3>>>3 179 4-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 4>>>4 180 12345-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 12345>>>12345 181 Anti-INCENP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-INCENP>>>Anti-INCENP 182 Anti-Aurora-B-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Aurora-B>>>Anti-Aurora-B 183 Anti-Survivin-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Survivin>>>Anti-Survivin 184 Anti-Aurora-B-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Aurora-B>>>Anti-Aurora-B 185 Anti-GFP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-GFP>>>Anti-GFP 186 Anti-Survivin-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Survivin>>>Anti-Survivin 187 Anti-Aurora-B-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Aurora-B>>>Anti-Aurora-B 188 Anti-VSV-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-VSV>>>Anti-VSV 189 Anti-Survivin-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Survivin>>>Anti-Survivin 190 Anti-Cdk4-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Cdk4>>>Anti-Cdk4 191 Anti-Aurora-B-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Aurora-B>>>Anti-Aurora-B 192 Anti-VSV-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-VSV>>>Anti-VSV 193 Anti-Survivin-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Survivin>>>Anti-Survivin 194 Anti-phospho-Histone H3-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-phospho-Histone>>>i-phospho-Histone H3 195 Anti-Cdk4-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Cdk4>>>Anti-Cdk4 196 Anti-Aurora-B-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Aurora-B>>>Anti-Aurora-B 197 Anti-Survivin-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Survivin>>>Anti-Survivin 198 Anti-Actin-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Actin>>>Anti-Actin 199 Anti-Cdk4-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Cdk4>>>Anti-Cdk4 200 GH-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_parr GH>>>GH 201 EF-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_parr EF>>>EF 202 CD-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_parr CD>>>CD 203 A-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_parr A>>>A 204 B-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_parr B>>>B 205 CPC targeting mediated by Survivin-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_note CPC targeting mediat>>>mediated by Survivin 206 G. Vader et al-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_note G. Vader et al>>>G. Vader et al 207 &2006 EUROPEAN MOLECULAR BIOLOGY ORGANIZATION-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note &2006 EUROPEAN MOLEC>>>BIOLOGY ORGANIZATION 208 EMBO reports VOL 7 | NO 1 | 2006-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note EMBO reports VOL 7 |>>> VOL 7 | NO 1 | 2006 209 scientific report-->id=787, page=1, size=36, fam=Times, col=#008a33, type=title, textLines=7--->[]--->font_note scientific report>>>scientific report 210 87-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note 87>>>87 211 Fig 3 online). However, it should be noted that the association of the Survivin­INCENP chimaera to centromeres and the central spindle was affected in Borealin-depleted cells. Instead of concentrating at centromeres and central spindle, a significant portion of the chimaera localized to chromatin throughout mitosis (Fig 3F, lower panel; data not shown). Taken together, these data show that the Survivin­INCENP chimaera is sufficient to restore a functional CPC in Borealin-depleted cells, and that Borealin might facilitate dissociation of the CPC from chromatin or enhance its concentration at centromeres and the central spindle.-->id=5, page=0, size=11, fam=Times, col=#000000, type=parr, textLines=294--->[]--->font_parr Fig 3 online). Howev>>>the central spindle. 212 Borealin facilitates Survivin­INCENP interaction-->id=4, page=0, size=12, fam=Times, col=#000000, type=title, textLines=10--->[]--->font_title Borealin facilitates>>>n­INCENP interaction 213 As Borealin is essential for localization of INCENP and Survivin (Gassmann et al, 2004), but not for a chimaera in which these two proteins are covalently linked, we reasoned that Borealin might be important for the Survivin­INCENP interaction. To further investigate the potential role of Borealin in regulating the Survivin­INCENP interaction, immunoprecipitations were carried out with GFP­INCENP from Borealin-depleted cells expressing either exogenous Survivin or Borealin. In control cells, both endogenous and exogenous Survivin could interact with INCENP (Fig 3H, lanes 1­3). In contrast, in the absence of endogenous Borealin, neither endogenous nor exogenous Survivin was able to interact with INCENP (Fig 3H, lanes 4,5). As depletion of Borealin also reduced Survivin levels, this probably explains why no endogenous Survivin was found to interact with INCENP (Fig 3H, lanes 4,10; Gassmann et al, 2004; Sampath et al, 2004). Indeed, after expression of exogenous, RNAi-resistant Borealin, endogenous Survivin levels and Survivin interaction with INCENP were restored (Fig 3E, lanes 6,12). Importantly, although exogenous Survivin levels were not affected by Borealin depletion, Survivin failed to interact with INCENP, indicating that, in vivo, an efficient interaction of Survivin and INCENP is dependent on the presence of Borealin (Fig 3E, lanes 5,11). The observation that Borealin can interact with INCENP that lacks the Survivin interaction domain (INCENP47­920; Fig 3G, lanes 6,8; supplementary Fig 3 online), in combination with previous in vitro data that have shown the direct interaction of Survivin and INCENP (Wheatley et al, 2001; Romano et al, 2003), rules out a direct bridging function for Borealin between Survivin and the centromere-targeting domain of INCENP. Hence, similar to CSC-1, its distant homologue in Caenorhabditis elegans (Romano et al, 2003), human Borealin has a role in facilitating Survivin­INCENP interaction. By generating the Survivin­INCENP chimaera, we have circumvented the necessity for Borealin in stabilizing Survivin­INCENP interaction, which probably explains why a functional CPC can be directed to the right mitotic structures in Borealin-depleted cells.-->id=5, page=0, size=11, fam=Times, col=#000000, type=parr, textLines=294--->[]--->font_parr As Borealin is essen>>>alin-depleted cells. 214 Conclusion-->id=4, page=0, size=12, fam=Times, col=#000000, type=title, textLines=10--->[]--->font_title Conclusion>>>Conclusion 215 Given the essential functions of Aurora-B during mitosis, explaining the mechanisms behind its dynamic localization is of great importance. The observation that depletion of one CPC component by siRNA results in the destabilization of the entire complex instigates the need for more complex experiments to unravel the functions of single CPC components. Using RNAi-complementation, we have provided evidence that an important function of Survivin is to serve as an interface between the centromere/central spindle and the CPC, whereas Borealin facilitates the interaction of Survivin and INCENP (Fig 4B). Importantly, the targeting function of Survivin was revealed only when Survivin was fused to INCENP lacking its centromere-targeting domain. This suggests that although Survivin can mediate localization of the CPC to its proper mitotic structures, the other CPC components are probably needed to obtain a stable association (possibly by affecting the on/off rate of the complex). Identifying the Survivin interaction partners at the centromere and midbody will be an important next step in understanding the regulation of the CPC.-->id=5, page=0, size=11, fam=Times, col=#000000, type=parr, textLines=294--->[]--->font_parr Given the essential >>>gulation of the CPC. 216 METHODS-->id=4, page=0, size=12, fam=Times, col=#000000, type=title, textLines=10--->[]--->font_title METHODS>>>METHODS 217 Antibodies and reagents. The following antibodies were used: rabbit anti-INCENP and rabbit anti-Aurora-B (Abcam, Cambridge, UK), rabbit anti-Survivin (R&D, Minneapolis, MN, USA), rabbit anti-Borealin (gift from Dr H. Funabiki), mouse anti-Aurora-B (Transduction, Lexington, KE, USA), mouse anti-VSV and mouse anti-a-Tubulin (Sigma, St Louis, MO, USA), rabbit anti-Cdk6 and rabbit anti-Cdk4 (Santa Cruz, Santa Cruz, CA, USA), sheep anti-BubR1 (gift from Dr S. Taylor), rabbit anti-GFP (gift from Dr J. Neefjes), rabbit anti-phospho-Ser10-histone-H3 and mouse anti-MPM-2 (Upstate, Charlotsville, VA, USA), CREST antiserum (Cortex Biochem, San Leandro, CA, USA), peroxidase-conjugated goat anti-rabbit and peroxidase-conjugated goat anti-mouse (Dako, Glostrup, Denmark) and donkey anti-mouse/Cy5 (Jackson, West Grove, PA, USA), goat anti-rabbit/Alexa-568, goat antirabbit/Alexa-633, goat anti-mouse/Alexa-568 and donkey antisheep/Alexa-568 (Molecular Probes, Eugene, OR, USA). Reagents were from Sigma unless stated otherwise.-->id=5, page=0, size=11, fam=Times, col=#000000, type=parr, textLines=294--->[]--->font_parr Antibodies and reage>>>ss stated otherwise. 218 Plasmids. RNAi vectors were generated as described (Lens et al, 2003), and were based on 50-TGACACGGAGATTGCCAAC-30 (INCENP) and 50-CAGCTGACCTGGATATCAC-30 (Borealin). Human INCENP and Borealin were PCR amplified from a T-cell 0:00 Borealin siRNA cDNA library using a 50 primer containing a VSV tag and cloned into pcDNA3.1 (INCENP) or into pCR3 containing an N-terminal VSV tag (Borealin). RNAi-resistant INCENP and Borealin constructs were generated using the QuickChanges Mutagenesis kit (Stratagene, La Jolla, CA, USA). For INCENP47­920, INCENP was digested with EcoRI/XhoI. This fragment was cloned into pCR3 containing an N-terminal VSV tag. For INCENP1­47, INCENP was digested with HindIII/EcoRI, and the product was cloned into pcDNA3.1. For Survivin­INCENP47­920, Survivin was ligated to the N terminus of INCENP47­920 after EcoRI digestion. For the Flow cytometry and time-lapse microscopy. The percentage of mitotic cells (MPM-2 positivity) and cell cycle distribution of spectrin­GFP-transfected cells were determined by flow cytometry, as described (Smits et al, 2000). H2B­GFP-expressing cells were followed by time-lapse microscopy, as described (Lens et al, 2003). Immunoblotting, immunoprecipitation and immunofluorescence. Immunoblotting was carried out as described (Smits et al, 2000). For immunoprecipitation, cells were lysed in E1A lysis buffer with protease inhibitors (Completes, Roche, Indianapolis, IN, USA) for 30 min at 4 1C (Smits et al, 2000). GFP-tagged proteins were immunoprecipitated with 3 mg anti-GFP precoupled to protein G­ Sepharose (Amersham Biosciences, Pittsburg, CA, USA). Immunofluorescence was carried out as described (Lens et al, 2003). DNA was stained with 4,6-diamidino-2-phenylindole. Supplementary information is available at EMBO reports online (http://www.emboreports.org).-->id=5, page=0, size=11, fam=Times, col=#000000, type=parr, textLines=294--->[]--->font_parr Plasmids. RNAi vecto>>>ww.emboreports.org). 219 Fig 2 | Survivin is a determining factor for mitotic localization of the chromosome passenger complex. (A) U2OS cells were transfected with the indicated plasmids. Puromycin was added to enrich for transfected cells. Lysates were analysed by western blotting. (B,C) Cells were transfected with the indicated short interfering RNA (siRNA) plasmids combined with the indicated VSV-tagged constructs. (B) After release from a thymidine block, cells were treated with Taxol and collected for fluorescence-activated cell sorting (FACS) analysis 18 h later. Mitotic percentages were determinedby MPM-2 staining. (C) Cells were collected for FACS analysis 60 h after transfection. (D,E) Cells grown on coverslips were transfected with mock or inner centromere protein (INCENP)/Survivin siRNA plasmids, VSV­Survivin­INCENP47­920-sil and H2B­GFP (green fluorescent protein). Immunostainings were carried out with the indicated antibodies. DNA (H2B­GFP) is depicted in blue. (F) Cells grown on coverslips were transfected with the indicated plasmids and H2B­GFP. Cells were stained with anti-Aurora-B, and the percentage of H2B­GFP-positive prometaphase cells in which Aurora-B localized on the centromeres was scored. The number of cells counted per condition is indicated. (G) Time-lapse images of a representative cell transfected with INCENP siRNA plasmid, Survivin­INCENP47­920-sil­GFP and H2B­diHcRed. Differential interference contrast (DIC), GFP and diHcRed signals are shown. (H) Time-lapse imaging of cells transfected with mock (upper panel) or Survivin siRNA plasmid (lower panel), INCENP1­47-GFP and H2B­diHcRed. Scale bars, 5 mm.-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_capfig Fig 2 | Survivin is >>>d. Scale bars, 5 mm. 220 c-->id=5, page=0, size=11, fam=Times, col=#000000, type=parr, textLines=294--->[]--->font_capfig c>>>c 221 CPC targeting mediated by Survivin-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_note CPC targeting mediat>>>mediated by Survivin 222 G. Vader et al-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_note G. Vader et al>>>G. Vader et al 223 EMBO reports VOL 7 | NO 1 | 2006-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note EMBO reports VOL 7 |>>> VOL 7 | NO 1 | 2006 224 &2006 EUROPEAN MOLECULAR BIOLOGY ORGANIZATION-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note &2006 EUROPEAN MOLEC>>>BIOLOGY ORGANIZATION 225 scientific report-->id=787, page=1, size=36, fam=Times, col=#008a33, type=title, textLines=7--->[]--->font_note scientific report>>>scientific report 226 88-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note 88>>>88 227 0:18-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 0:18>>>0:18 228 0:24-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 0:24>>>0:24 229 0:30-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 0:30>>>0:30 230 0:42-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 0:42>>>0:42 231 0:48-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 0:48>>>0:48 232 2:18-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 2:18>>>2:18 233 GFP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr GFP>>>GFP 234 H2B--->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr H2B->>>H2B- 235 diHcRed-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr diHcRed>>>diHcRed 236 DIC-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr DIC>>>DIC 237 INCENP siRNA +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr INCENP siRNA +>>>INCENP siRNA + 238 VSV-Survivin-INCENP47-920-GFP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr VSV-Survivin-INCENP4>>>vin-INCENP47-920-GFP 239 GFP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr GFP>>>GFP 240 DIC-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr DIC>>>DIC 241 H2B diHcRed-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr H2B diHcRed>>>H2B diHcRed 242 INCENP1-47 - GFP-->id=786, page=1, size=5, fam=Times, col=#000000, type=parrnote, textLines=23--->[]--->font_parr INCENP1-47 - GFP>>>INCENP1-47 - GFP 243 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 244 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 245 Anti-VSV-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-VSV>>>Anti-VSV 246 Anti-Cdk4-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Cdk4>>>Anti-Cdk4 247 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 248 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 249 VSV-INCENP-sil VSV-Survivin--->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr VSV-INCENP-sil VSV-S>>>NP-sil VSV-Survivin- 250 INCENP47-920-sil-->id=786, page=1, size=5, fam=Times, col=#000000, type=parrnote, textLines=23--->[]--->font_parr INCENP47-920-sil>>>INCENP47-920-sil 251 Mock siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mock siRNA>>>Mock siRNA 252 Survivin siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Survivin siRNA>>>Survivin siRNA 253 INCENP siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr INCENP siRNA>>>INCENP siRNA 254 H2BGFP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr H2BGFP>>>H2BGFP 255 Merge-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Merge>>>Merge 256 VSVSurvivin INCENP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr VSVSurvivin INCENP>>>VSVSurvivin INCENP 257 47 -920-sil-->id=786, page=1, size=5, fam=Times, col=#000000, type=parrnote, textLines=23--->[]--->font_parr 47 -920-sil>>>47 -920-sil 258 Mock siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mock siRNA>>>Mock siRNA 259 Survivin siRNA + INCENP siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Survivin siRNA + INC>>>siRNA + INCENP siRNA 260 INCENP siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr INCENP siRNA>>>INCENP siRNA 261 Mock siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mock siRNA>>>Mock siRNA 262 Survivin siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Survivin siRNA>>>Survivin siRNA 263 INCENP siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr INCENP siRNA>>>INCENP siRNA 264 Survivin siRNA + INCENP siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Survivin siRNA + INC>>>siRNA + INCENP siRNA 265 Empty vector-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Empty vector>>>Empty vector 266 VSV-Survivin--->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr VSV-Survivin->>>VSV-Survivin- 267 INCENP47-920-sil-->id=786, page=1, size=5, fam=Times, col=#000000, type=parrnote, textLines=23--->[]--->font_parr INCENP47-920-sil>>>INCENP47-920-sil 268 4n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 4n>>>4n 269 2n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 2n>>>2n 270 8n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 8n>>>8n 271 4n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 4n>>>4n 272 2 n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 2 n>>>2 n 273 8n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 8n>>>8n 274 5.7%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 5.7%>>>5.7% 275 18.5%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 18.5%>>>18.5% 276 21.9%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 21.9%>>>21.9% 277 6.4%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 6.4%>>>6.4% 278 11.6%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 11.6%>>>11.6% 279 10.2%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 10.2%>>>10.2% 280 7.7%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 7.7%>>>7.7% 281 4 n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 4 n>>>4 n 282 2n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 2n>>>2n 283 8n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 8n>>>8n 284 VSV-Survivin-sil-->id=2146, page=3, size=7, fam=Times, col=#000000, type=note, textLines=2--->[]--->font_note VSV-Survivin-sil>>>VSV-Survivin-sil 285 7.8%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 7.8%>>>7.8% 286 17.5%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 17.5%>>>17.5% 287 10.4%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 10.4%>>>10.4% 288 18.3%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 18.3%>>>18.3% 289 Empty vector-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Empty vector>>>Empty vector 290 VSV-INCENP-sil-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr VSV-INCENP-sil>>>VSV-INCENP-sil 291 VSV-Surv-INCENP47-920-sil-->id=786, page=1, size=5, fam=Times, col=#000000, type=parrnote, textLines=23--->[]--->font_parr VSV-Surv-INCENP47-92>>>urv-INCENP47-920-sil 292 VSV-Survivin-sil-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr VSV-Survivin-sil>>>VSV-Survivin-sil 293 Mitotic-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mitotic>>>Mitotic 294 cells-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr cells>>>cells 295 (%) 40-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr (%) 40>>>(%) 40 296 20-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 20>>>20 297 0-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 0>>>0 298 60-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 60>>>60 299 Survivin-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Survivin>>>Survivin 300 siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr siRNA>>>siRNA 301 INCENP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr INCENP>>>INCENP 302 siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr siRNA>>>siRNA 303 Mock-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mock>>>Mock 304 siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr siRNA>>>siRNA 305 Survivin-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Survivin>>>Survivin 306 siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr siRNA>>>siRNA 307 + INCEN-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr + INCEN>>>+ INCEN 308 PsiRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr PsiRNA>>>PsiRNA 309 Merge-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Merge>>>Merge 310 DNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr DNA>>>DNA 311 INCENP siRNA + VSV-Survivin --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr INCENP siRNA + VSV-S>>>RNA + VSV-Survivin - 312 INCENP47-920-sil-->id=786, page=1, size=5, fam=Times, col=#000000, type=parrnote, textLines=23--->[]--->font_parr INCENP47-920-sil>>>INCENP47-920-sil 313 Anti-VSV-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-VSV>>>Anti-VSV 314 Anti-VSV-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-VSV>>>Anti-VSV 315 Anti-Aurora-B-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Aurora-B>>>Anti-Aurora-B 316 Aur-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Aur>>>Aur 317 -B-positive-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr -B-positive>>>-B-positive 318 cells-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr cells>>>cells 319 (%)-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr (%)>>>(%) 320 0-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 0>>>0 321 40-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 40>>>40 322 60-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 60>>>60 323 80-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 80>>>80 324 100-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 100>>>100 325 20-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 20>>>20 326 Mock-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mock>>>Mock 327 siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr siRNA>>>siRNA 328 INCENP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr INCENP>>>INCENP 329 siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr siRNA>>>siRNA 330 INCENP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr INCENP>>>INCENP 331 siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr siRNA>>>siRNA 332 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 333 VSV-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr VSV>>>VSV 334 -INCENP-silINCENP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr -INCENP-silINCENP>>>-INCENP-silINCENP 335 siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr siRNA>>>siRNA 336 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 337 VSV-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr VSV>>>VSV 338 -Surv-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr -Surv>>>-Surv 339 -INCENP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr -INCENP>>>-INCENP 340 47- 920-->id=786, page=1, size=5, fam=Times, col=#000000, type=parrnote, textLines=23--->[]--->font_parr 47- 920>>>47- 920 341 -sil-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr -sil>>>-sil 342 n=47-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr n=47>>>n=47 343 n=96-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr n=96>>>n=96 344 n=87-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr n=87>>>n=87 345 n=62-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr n=62>>>n=62 346 + Taxol-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr + Taxol>>>+ Taxol 347 G-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_parr G>>>G 348 H-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_parr H>>>H 349 F-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_parr F>>>F 350 D-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_parr D>>>D 351 C-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_parr C>>>C 352 E-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_parr E>>>E 353 AB-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_parr AB>>>AB 354 23.9% Borealin siRNA cDNA library using a 50 primer containing a VSV tag and cloned into pcDNA3.1 (INCENP) or into pCR3 containing an N-terminal VSV tag (Borealin). RNAi-resistant INCENP and Borealin constructs were generated using the QuickChanges Mutagenesis kit (Stratagene, La Jolla, CA, USA). For INCENP47­920, INCENP was digested with EcoRI/XhoI. This fragment was cloned into pCR3 containing an N-terminal VSV tag. For INCENP1­47, INCENP was digested with HindIII/EcoRI, and the product was cloned into pcDNA3.1. For Survivin­INCENP47­920, Survivin was ligated to the N terminus of INCENP47­920 after EcoRI digestion. For the Flow cytometry and time-lapse microscopy. The percentage of mitotic cells (MPM-2 positivity) and cell cycle distribution of spectrin­GFP-transfected cells were determined by flow cytometry, as described (Smits et al, 2000). H2B­GFP-expressing cells were followed by time-lapse microscopy, as described (Lens et al, 2003). Immunoblotting, immunoprecipitation and immunofluorescence. Immunoblotting was carried out as described (Smits et al, 2000). For immunoprecipitation, cells were lysed in E1A lysis buffer with protease inhibitors (Completes, Roche, Indianapolis, IN, USA) for 30 min at 4 1C (Smits et al, 2000). GFP-tagged proteins were immunoprecipitated with 3 mg anti-GFP precoupled to protein G­ Sepharose (Amersham Biosciences, Pittsburg, CA, USA). Immunofluorescence was carried out as described (Lens et al, 2003). DNA was stained with 4,6-diamidino-2-phenylindole. Supplementary information is available at EMBO reports online (http://www.emboreports.org).-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 23.9% Borealin siRNA>>>ww.emboreports.org). 355 CPC targeting mediated by Survivin-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_note CPC targeting mediat>>>mediated by Survivin 356 G. Vader et al-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_note G. Vader et al>>>G. Vader et al 357 &2006 EUROPEAN MOLECULAR BIOLOGY ORGANIZATION-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note &2006 EUROPEAN MOLEC>>>BIOLOGY ORGANIZATION 358 EMBO reports VOL 7 | NO 1 | 2006-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note EMBO reports VOL 7 |>>> VOL 7 | NO 1 | 2006 359 scientific report-->id=787, page=1, size=36, fam=Times, col=#008a33, type=title, textLines=7--->[]--->font_note scientific report>>>scientific report 360 89-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note 89>>>89 361 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 362 VSV­Borealin-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr VSV­Borealin>>>VSV­Borealin 363 Anti-VSV-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-VSV>>>Anti-VSV 364 Anti-Survivin-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Survivin>>>Anti-Survivin 365 Anti-Tubulin-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Tubulin>>>Anti-Tubulin 366 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 367 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 368 Mock siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mock siRNA>>>Mock siRNA 369 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 370 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 371 4 n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 4 n>>>4 n 372 2n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 2n>>>2n 373 8 n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 8 n>>>8 n 374 4n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 4n>>>4n 375 2n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 2n>>>2n 376 8 n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 8 n>>>8 n 377 Mock siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mock siRNA>>>Mock siRNA 378 Borealin siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Borealin siRNA>>>Borealin siRNA 379 Empty vector-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Empty vector>>>Empty vector 380 VSV-Survivin--->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr VSV-Survivin->>>VSV-Survivin- 381 INCENP47-920-sil-->id=786, page=1, size=5, fam=Times, col=#000000, type=parrnote, textLines=23--->[]--->font_parr INCENP47-920-sil>>>INCENP47-920-sil 382 4.3%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 4.3%>>>4.3% 383 8.7%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 8.7%>>>8.7% 384 9.4%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 9.4%>>>9.4% 385 26.7%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 26.7%>>>26.7% 386 D-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_parr D>>>D 387 F-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_parr F>>>F 388 E-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_parr E>>>E 389 40-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 40>>>40 390 20-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 20>>>20 391 0-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 0>>>0 392 INCENP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr INCENP>>>INCENP 393 siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr siRNA>>>siRNA 394 Mock-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mock>>>Mock 395 siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr siRNA>>>siRNA 396 Bor-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Bor>>>Bor 397 ealin-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ealin>>>ealin 398 siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr siRNA>>>siRNA 399 +Taxol-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +Taxol>>>+Taxol 400 Mitotic-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mitotic>>>Mitotic 401 cells-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr cells>>>cells 402 (%)-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr (%)>>>(%) 403 Empty vector-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Empty vector>>>Empty vector 404 VSV-INCENP-sil-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr VSV-INCENP-sil>>>VSV-INCENP-sil 405 VSV-Surv-INCENP47-920-sil-->id=786, page=1, size=5, fam=Times, col=#000000, type=parrnote, textLines=23--->[]--->font_parr VSV-Surv-INCENP47-92>>>urv-INCENP47-920-sil 406 Mock siRNA Borealin siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mock siRNA Borealin >>>siRNA Borealin siRNA 407 Mock siRNA Borealin siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mock siRNA Borealin >>>siRNA Borealin siRNA 408 VSV-Survivin-sil VSV-Borealin-sil-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr VSV-Survivin-sil VSV>>>sil VSV-Borealin-sil 409 Anti-GFP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-GFP>>>Anti-GFP 410 Anti-Survivin-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Survivin>>>Anti-Survivin 411 Anti-VSV (Borealin)-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-VSV (Borealin)>>>Anti-VSV (Borealin) 412 Empty vector-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Empty vector>>>Empty vector 413 + -- + ---->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr + -- + -->>>+ -- + -- 414 + -- +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr + -- +>>>+ -- + 415 -- + -- + -- + -- + -- + -- + -- + -- +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr -- + -- + -- + -- + >>> -- + -- + -- + -- + 416 Exog. Endog.-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Exog. Endog.>>>Exog. Endog. 417 Total lysate-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Total lysate>>>Total lysate 418 12-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 12>>>12 419 3 4 5 6-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 3 4 5 6>>>3 4 5 6 420 78 9 10 11 12-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 78 9 10 11 12>>>78 9 10 11 12 421 GFP-INCENP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr GFP-INCENP>>>GFP-INCENP 422 ++ + + + +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ++ + + + +>>>++ + + + + 423 + + + +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr + + + +>>>+ + + + 424 + +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr + +>>>+ + 425 4 n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 4 n>>>4 n 426 2n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 2n>>>2n 427 8 n-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 8 n>>>8 n 428 5.4%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 5.4%>>>5.4% 429 35.7%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 35.7%>>>35.7% 430 6.9%-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 6.9%>>>6.9% 431 Mock siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mock siRNA>>>Mock siRNA 432 Borealin siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Borealin siRNA>>>Borealin siRNA 433 Borealin siRNA + VSV -Borealin-sil Mock siRNA Borealin siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Borealin siRNA + VSV>>>siRNA Borealin siRNA 434 Anti-Borealin-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Borealin>>>Anti-Borealin 435 H2B-GFP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr H2B-GFP>>>H2B-GFP 436 Merge-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Merge>>>Merge 437 Mock siRNA Borealin siRNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Mock siRNA Borealin >>>siRNA Borealin siRNA 438 0-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 0>>>0 439 20-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 20>>>20 440 40-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 40>>>40 441 60-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 60>>>60 442 80-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 80>>>80 443 100 n=18-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 100 n=18>>>100 n=18 444 n=127-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr n=127>>>n=127 445 Bor-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Bor>>>Bor 446 ealin-positive cells-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ealin-positive cells>>>ealin-positive cells 447 (%)-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr (%)>>>(%) 448 GFP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr GFP>>>GFP 449 Anti-Borealin-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Borealin>>>Anti-Borealin 450 Anti-Borealin-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-Borealin>>>Anti-Borealin 451 CREST-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr CREST>>>CREST 452 Merge-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Merge>>>Merge 453 GFP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr GFP>>>GFP 454 DNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr DNA>>>DNA 455 Merge-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Merge>>>Merge 456 Borealin siRNA +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Borealin siRNA +>>>Borealin siRNA + 457 VSV -Survivin-INCENP47-920-sil-GFP-->id=786, page=1, size=5, fam=Times, col=#000000, type=parrnote, textLines=23--->[]--->font_parr VSV -Survivin-INCENP>>>INCENP47-920-sil-GFP 458 Total lysate-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Total lysate>>>Total lysate 459 IP: Anti-GFP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr IP: Anti-GFP>>>IP: Anti-GFP 460 IP: Anti-GFP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr IP: Anti-GFP>>>IP: Anti-GFP 461 GFP-INCENP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr GFP-INCENP>>>GFP-INCENP 462 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 463 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 464 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 465 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 466 ---->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr -->>>-- 467 ++ --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ++ ->>>++ - 468 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 469 ++-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ++>>>++ 470 ---->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr -->>>-- 471 ++ --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ++ ->>>++ - 472 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 473 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 474 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 475 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 476 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 477 +-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr +>>>+ 478 --->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr ->>>- 479 + VSV-Borealin-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr + VSV-Borealin>>>+ VSV-Borealin 480 Anti-GFP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-GFP>>>Anti-GFP 481 Anti-VSV-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Anti-VSV>>>Anti-VSV 482 GFP-INCENP47-920-->id=786, page=1, size=5, fam=Times, col=#000000, type=parrnote, textLines=23--->[]--->font_parr GFP-INCENP47-920>>>GFP-INCENP47-920 483 123 4 5 678-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr 123 4 5 678>>>123 4 5 678 484 GFP CREST DNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr GFP CREST DNA>>>GFP CREST DNA 485 Merge w/DNA-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr Merge w/DNA>>>Merge w/DNA 486 GFP Borealin CREST-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr GFP Borealin CREST>>>GFP Borealin CREST 487 IgG-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_parr IgG>>>IgG 488 AB-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_parr AB>>>AB 489 C-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_parr C>>>C 490 G-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_parr G>>>G 491 H cDNA library using a 50 primer containing a VSV tag and cloned into pcDNA3.1 (INCENP) or into pCR3 containing an N-terminal VSV tag (Borealin). RNAi-resistant INCENP and Borealin constructs were generated using the QuickChanges Mutagenesis kit (Stratagene, La Jolla, CA, USA). For INCENP47­920, INCENP was digested with EcoRI/XhoI. This fragment was cloned into pCR3 containing an N-terminal VSV tag. For INCENP1­47, INCENP was digested with HindIII/EcoRI, and the product was cloned into pcDNA3.1. For Survivin­INCENP47­920, Survivin was ligated to the N terminus of INCENP47­920 after EcoRI digestion. For the Flow cytometry and time-lapse microscopy. The percentage of mitotic cells (MPM-2 positivity) and cell cycle distribution of spectrin­GFP-transfected cells were determined by flow cytometry, as described (Smits et al, 2000). H2B­GFP-expressing cells were followed by time-lapse microscopy, as described (Lens et al, 2003). Immunoblotting, immunoprecipitation and immunofluorescence. Immunoblotting was carried out as described (Smits et al, 2000). For immunoprecipitation, cells were lysed in E1A lysis buffer with protease inhibitors (Completes, Roche, Indianapolis, IN, USA) for 30 min at 4 1C (Smits et al, 2000). GFP-tagged proteins were immunoprecipitated with 3 mg anti-GFP precoupled to protein G­ Sepharose (Amersham Biosciences, Pittsburg, CA, USA). Immunofluorescence was carried out as described (Lens et al, 2003). DNA was stained with 4,6-diamidino-2-phenylindole. Supplementary information is available at EMBO reports online (http://www.emboreports.org).-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_parr H cDNA library using>>>ww.emboreports.org). 492 CPC targeting mediated by Survivin-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_note CPC targeting mediat>>>mediated by Survivin 493 G. Vader et al-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_note G. Vader et al>>>G. Vader et al 494 EMBO reports VOL 7 | NO 1 | 2006-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note EMBO reports VOL 7 |>>> VOL 7 | NO 1 | 2006 495 &2006 EUROPEAN MOLECULAR BIOLOGY ORGANIZATION-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note &2006 EUROPEAN MOLEC>>>BIOLOGY ORGANIZATION 496 scientific report-->id=787, page=1, size=36, fam=Times, col=#008a33, type=title, textLines=7--->[]--->font_note scientific report>>>scientific report 497 90-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note 90>>>90 498 Fig 3 | Survivin can target a functional chromosome passenger complex in the absence of Borealin, but interaction with inner centromere protein (INCENP) depends on Borealin. (A) U2OS cells were transfected with the indicated plasmids, puromycin was added to enrich for transfected cells and lysates were analysed by western blotting. (B­E) Cells were transfected with the indicated plasmids. (C) Cells grown on coverslips were transfected with mock or Borealin short interfering RNA (siRNA) plasmid and H2B­GFP (green fluorescent protein). Immunostainings were carried out with anti-Borealin, and the percentage of H2B­GFP-positive prometaphase cells in which Borealin localized on centromeres was scored. The number of cells counted per condition is indicated. (B,D) Cells were grown asynchronously for 60 h and collected for fluorescence-activated cell sorting (FACS) analysis. (E) Taxol was added after thymidine release, and cells were collected for FACS analysis 18 h later. Mitotic percentages were determined by MPM-2 staining. (F) Cells grown on coverslips were transfected with Borealin siRNA plasmid and VSV­Survivin­INCENP47­920-sil­GFP. Immunostainings were carried out with the indicated antibodies, and DNA was stained with 4,6-diamidino-2-phenylindole. Different colours used for the two merge pictures are indicated. (G) Human embryonic kidney 293 cells were transfected with 5 mg of the indicated constructs. After 48 h, cells were collected, immunoprecipitations were carried out with anti-GFP and samples were analysed by western blotting. (H) U2OS cells were transfected with the indicated plasmids. At 18 h after transfection, puromycin was added and 36 h later, cells were collected . Immunoprecipitations were carried out with anti-GFP and western blots were probed with the indicated antibodies. Scale bars, 5 mm.-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_capfig Fig 3 | Survivin can>>>s. Scale bars, 5 mm. 499 Indirect centromeretargeting domain IN-box-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note Indirect centromeret>>>geting domain IN-box 500 147-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note 147>>>147 501 920-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note 920>>>920 502 INCENP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note INCENP>>>INCENP 503 INCENP-sil-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note INCENP-sil>>>INCENP-sil 504 47-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note 47>>>47 505 920-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note 920>>>920 506 INCENP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note INCENP>>>INCENP 507 INCENP47-920-sil-->id=786, page=1, size=5, fam=Times, col=#000000, type=parrnote, textLines=23--->[]--->font_note INCENP47-920-sil>>>INCENP47-920-sil 508 47-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note 47>>>47 509 920-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note 920>>>920 510 Survivin-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note Survivin>>>Survivin 511 INCENP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note INCENP>>>INCENP 512 Survivin-INCENP47-920-sil-->id=786, page=1, size=5, fam=Times, col=#000000, type=parrnote, textLines=23--->[]--->font_note Survivin-INCENP47-92>>>vin-INCENP47-920-sil 513 147-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note 147>>>147 514 INCENP1-47-->id=786, page=1, size=5, fam=Times, col=#000000, type=parrnote, textLines=23--->[]--->font_note INCENP1-47>>>INCENP1-47 515 * *-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note * *>>>* * 516 * *-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note * *>>>* * 517 * *-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note * *>>>* * 518 Indirect centromeretargeting domain IN-box-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note Indirect centromeret>>>geting domain IN-box 519 147-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note 147>>>147 520 920-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note 920>>>920 521 INCENP-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note INCENP>>>INCENP 522 Survivin-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note Survivin>>>Survivin 523 Anaphase-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note Anaphase>>>Anaphase 524 (central spindle)-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note (central spindle)>>>(central spindle) 525 Prometaphase (centromeres)-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note Prometaphase (centro>>>aphase (centromeres) 526 Localization-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note Localization>>>Localization 527 Interaction, stabilization-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note Interaction, stabili>>>ction, stabilization 528 RNAi-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note RNAi>>>RNAi 529 Aurora-B-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note Aurora-B>>>Aurora-B 530 Interaction, stabilization-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note Interaction, stabili>>>ction, stabilization 531 Borealin-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note Borealin>>>Borealin 532 Cytokinesis (midbody)-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note Cytokinesis (midbody>>>ytokinesis (midbody) 533 A-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_note A>>>A 534 B-->id=2, page=0, size=10, fam=Times, col=#000000, type=parrnote, textLines=21--->[]--->font_note B>>>B 535 Fig 4 | Overview of inner centromere protein constructs and model. (A) Schematic representation of inner centromere protein (INCENP) constructs. Survivin and Aurora-B binding domains are depicted. Introduced RNA interference (RNAi) silent mutations are shown. (B) Model showing the proposed upstream targeting role of Survivin in the chromosome passenger complex.-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_capfig Fig 4 | Overview of >>>e passenger complex. 536 CPC targeting mediated by Survivin-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_note CPC targeting mediat>>>mediated by Survivin 537 G. Vader et al-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_note G. Vader et al>>>G. Vader et al 538 &2006 EUROPEAN MOLECULAR BIOLOGY ORGANIZATION-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note &2006 EUROPEAN MOLEC>>>BIOLOGY ORGANIZATION 539 EMBO reports VOL 7 | NO 1 | 2006-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note EMBO reports VOL 7 |>>> VOL 7 | NO 1 | 2006 540 scientific report-->id=787, page=1, size=36, fam=Times, col=#008a33, type=title, textLines=7--->[]--->font_note scientific report>>>scientific report 541 91-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note 91>>>91 542 ACKNOWLEDGEMENTS We thank B.v.d. Weerdt, M.v. Vugt and G. Kops for comments on the manuscript, T.v. Harn for technical support and S. Taylor and H. Funabiki for the gift of reagents. This work was supported by the Dutch Cancer Society (NKI 2002-2764).-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_parr ACKNOWLEDGEMENTS We >>>ety (NKI 2002-2764). 543 Ainsztein AM, Kandels-Lewis SE, Mackay AM, Earnshaw WC (1998) INCENP centromere and spindle targeting: identification of essential conserved motifs and involvement of heterochromatin protein HP1. J Cell Biol 143: 1763­1774-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_parr Ainsztein AM, Kandel>>> Biol 143: 1763­1774 544 Biggins S, Murray AW (2001) The budding yeast protein kinase Ipl1/Aurora allows the absence of tension to activate the spindle checkpoint. Genes Dev 15: 3118­3129-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_parr Biggins S, Murray AW>>>es Dev 15: 3118­3129 545 Gassmann R, Carvalho A, Henzing AJ, Ruchaud S, Hudson DF, Honda R, Nigg EA, Gerloff DL, Earnshaw WC (2004) Borealin: a novel chromosomal passenger required for stability of the bipolar mitotic spindle. J Cell Biol 166: 179­191-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_parr Gassmann R, Carvalho>>>ll Biol 166: 179­191 546 Hauf S, Cole RW, LaTerra S, Zimmer C, Schnapp G, Walter R, Heckel A, van Meel J, Rieder CL, Peters JM (2003) The small molecule Hesperadin reveals a role for Aurora B in correcting kinetochore­microtubule attachment and in maintaining the spindle assembly checkpoint. J Cell Biol 161: 281­294 Honda R, Korner R, Nigg EA (2003) Exploring the functional interactions between Aurora B, INCENP, and survivin in mitosis. Mol Biol Cell 14: 3325­3341-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_parr Hauf S, Cole RW, LaT>>>l Cell 14: 3325­3341 547 Kaitna S, Mendoza M, Jantsch-Plunger V, Glotzer M (2000) Incenp and an aurora-like kinase form a complex essential for chromosome segregation and efficient completion of cytokinesis. Curr Biol 10: 1172­1181-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_parr Kaitna S, Mendoza M,>>>r Biol 10: 1172­1181 548 Lampson MA, Renduchitala K, Khodjakov A, Kapoor TM (2004) Correcting improper chromosome­spindle attachments during cell division. Nat Cell Biol 6: 232­237-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_parr Lampson MA, Renduchi>>>Cell Biol 6: 232­237 549 Lens SM, Medema RH (2003) The survivin/Aurora B complex: its role in coordinating tension and attachment. Cell Cycle 2: 507­510-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_parr Lens SM, Medema RH (>>>ell Cycle 2: 507­510 550 Lens SM, Wolthuis RM, Klompmaker R, Kauw J, Agami R, Brummelkamp T, Kops G, Medema RH (2003) Survivin is required for a sustained spindle checkpoint arrest in response to lack of tension. EMBO J 22: 2934­2947-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_parr Lens SM, Wolthuis RM>>>EMBO J 22: 2934­2947 551 Nicklas RB (1997) How cells get the right chromosomes. Science 275: 632­637-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_parr Nicklas RB (1997) Ho>>>Science 275: 632­637 552 Romano A, Guse A, Krascenicova I, Schnabel H, Schnabel R, Glotzer M (2003) CSC-1: a subunit of the Aurora B kinase complex that binds to the survivin-like protein BIR-1 and the incenp-like protein ICP-1. J Cell Biol 161: 229­236-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_parr Romano A, Guse A, Kr>>>ll Biol 161: 229­236 553 Sampath SC, Ohi R, Leismann O, Salic A, Pozniakovski A, Funabiki H (2004) The chromosomal passenger complex is required for chromatininduced microtubule stabilization and spindle assembly. Cell 118: 187­202-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_parr Sampath SC, Ohi R, L>>>y. Cell 118: 187­202 554 Severson AF, Hamill DR, Carter JC, Schumacher J, Bowerman B (2000) The aurora-related kinase AIR-2 recruits ZEN-4/CeMKLP1 to the mitotic spindle at metaphase and is required for cytokinesis. Curr Biol 10: 1162­1171-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_parr Severson AF, Hamill >>>r Biol 10: 1162­1171 555 Smits VA, Klompmaker R, Arnaud L, Rijksen G, Nigg EA, Medema RH (2000) Polo-like kinase-1 is a target of the DNA damage checkpoint. Nat Cell Biol 2: 672­676-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_parr Smits VA, Klompmaker>>>Cell Biol 2: 672­676 556 Tanaka TU (2002) Bi-orienting chromosomes on the mitotic spindle. Curr Opin Cell Biol 14: 365­371-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_parr Tanaka TU (2002) Bi->>>ell Biol 14: 365­371 557 Tanaka TU, Rachidi N, Janke C, Pereira G, Galova M, Schiebel E, Stark MJ, Nasmyth K (2002) Evidence that the Ipl1­Sli15 (Aurora kinase-INCENP) complex promotes chromosome bi-orientation by altering kinetochore­ spindle pole connections. Cell 108: 317­329-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_parr Tanaka TU, Rachidi N>>>s. Cell 108: 317­329 558 Vagnarelli P, Earnshaw WC (2004) Chromosomal passengers: the four-dimensional regulation of mitotic events. Chromosoma 113: 211­222-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_parr Vagnarelli P, Earnsh>>>omosoma 113: 211­222 559 Wheatley SP, Carvalho A, Vagnarelli P, Earnshaw WC (2001) INCENP is required for proper targeting of Survivin to the centromeres and the anaphase spindle during mitosis. Curr Biol 11: 886­890-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_parr Wheatley SP, Carvalh>>>urr Biol 11: 886­890 560 Wheatley SP, Henzing AJ, Dodson H, Khaled W, Earnshaw WC (2004) Aurora-B phosphorylation in vitro identifies a residue of survivin that is essential for its localization and binding to inner centromere protein (INCENP) in vivo. J Biol Chem 279: 5655­5660-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_parr Wheatley SP, Henzing>>> Chem 279: 5655­5660 561 Yasui Y, Urano T, Kawajiri A, Nagata K, Tatsuka M, Saya H, Furukawa K, Takahashi T, Izawa I, Inagaki M (2004) Autophosphorylation of a newly identified site of Aurora-B is indispensable for cytokinesis. J Biol Chem 279: 12997­13003-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_parr Yasui Y, Urano T, Ka>>>hem 279: 12997­13003 562 CPC targeting mediated by Survivin-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_note CPC targeting mediat>>>mediated by Survivin 563 G. Vader et al-->id=3, page=0, size=9, fam=Times, col=#000000, type=parrnote, textLines=143--->[]--->font_note G. Vader et al>>>G. Vader et al 564 EMBO reports VOL 7 | NO 1 | 2006-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note EMBO reports VOL 7 |>>> VOL 7 | NO 1 | 2006 565 &2006 EUROPEAN MOLECULAR BIOLOGY ORGANIZATION-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note &2006 EUROPEAN MOLEC>>>BIOLOGY ORGANIZATION 566 scientific report-->id=787, page=1, size=36, fam=Times, col=#008a33, type=title, textLines=7--->[]--->font_note scientific report>>>scientific report 567 92-->id=6, page=0, size=8, fam=Times, col=#000000, type=parrnote, textLines=624--->[]--->font_note 92>>>92