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| Subject Categories: Cell Cycle |
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| The EMBO Journal
(2002) 21, 5364–5374, doi: 10.1093/emboj/cdf531 |
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| Cdc37 is essential for chromosome segregation and cytokinesis in higher eukaryotes |
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| Bodo M.H. Lange1, Elena Rebollo1, Andrea Herold2 and Cayetano González1 |
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1 European Molecular Biology Laboratory, Cell Biology and Biophysics Programme, D-69117 Heidelberg, Germany 2 Gene Expression Programme, Meyerhofstrasse 1, D-69117 Heidelberg, Germany To whom correspondence should be addressed Bodo M.H. Lange, Blange@EMBL-Heidelberg.de Received 25 April 2002; Revised 6 August 2002; Accepted 15 August 2002. |
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| Abstract |
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| Cdc37 has been shown to be required for the activity and stability of protein kinases that regulate different stages of cell cycle progression. However, little is known so far regarding interactions of Cdc37 with kinases that play a role in cell division. Here we show that the loss of function of Cdc37 in Drosophila leads to defects in mitosis and male meiosis, and that these phenotypes closely resemble those brought about by the inactivation of Aurora B. We provide evidence that Aurora B interacts with and requires the Cdc37/Hsp90 complex for its stability. We conclude that the Cdc37/Hsp90 complex modulates the function of Aurora B and that most of the phenotypes brought about by the loss of Cdc37 function can be explained by the inactivation of this kinase. These observations substantiate the role of Cdc37 as an upstream regulatory element of key cell cycle kinases. |
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| Keywords: Aurora B, Cdc37, cell cycle, cytokinesis, mitosis |
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