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XB-ART-53946
Mol Cell Proteomics 2010 Feb 01;92:336-50. doi: 10.1074/mcp.M900308-MCP200.
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Binding partner switching on microtubules and aurora-B in the mitosis to cytokinesis transition.

Ozlü N , Monigatti F , Renard BY , Field CM , Steen H , Mitchison TJ , Steen JJ .


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The cytoskeleton globally reorganizes between mitosis (M phase) and cytokinesis (C phase), which presumably requires extensive regulatory changes. To reveal these changes, we undertook a comparative proteomics analysis of cells tightly drug-synchronized in each phase. We identified 25 proteins that bind selectively to microtubules in C phase and identified several novel binding partners including nucleolar and spindle-associated protein. C phase-selective microtubule binding of many of these proteins depended on activity of Aurora kinases as assayed by treatment with the drug VX680. Aurora-B binding partners switched dramatically between M phase to C phase, and we identified several novel C phase-selective Aurora-B binding partners including PRC1, KIF4, and anaphase-promoting complex/cyclosome. Our approach can be extended to other cellular compartments and cell states, and our data provide the first broad biochemical framework for understanding C phase. Concretely, we report a central role for Aurora-B in regulating the C phase cytoskeleton.

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Species referenced: Xenopus
Genes referenced: prc1

References [+] :
Andersen, Spindle assembly and the art of regulating microtubule dynamics by MAPs and Stathmin/Op18. 2000, Pubmed