Polo kinase regulates the localization and activity of the chromosomal passenger complex in meiosis and mitosis in Drosophila melanogaster

Mar Carmena*, Miguel Ortiz Lombardia, Hiromi Ogawa, William C. Earnshaw

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Cell cycle progression is regulated by members of the cyclin-dependent kinase (CDK), Polo and Aurora families of protein kinases. The levels of expression and localization of the key regulatory kinases are themselves subject to very tight control. There is increasing evidence that crosstalk between the mitotic kinases provides for an additional level of regulation. We have previously shown that Aurora B activates Polo kinase at the centromere in mitosis, and that the interaction between Polo and the chromosomal passenger complex (CPC) component INCENP is essential in this activation. In this report, we show that Polo kinase is required for the correct localization and activity of the CPC in meiosis and mitosis. Study of the phenotype of different polo allele combinations compared to the effect of chemical inhibition revealed significant differences in the localization and activity of the CPC in diploid tissues. Our results shed new light on the mechanisms that control the activity of Aurora B in meiosis and mitosis. & 2014 The Authors. Published.

Original languageEnglish
Article number140162
JournalOpen Biology
Volume4
Issue number11
DOIs
Publication statusPublished - 1 Jan 2014

Keywords

  • Aurora kinases
  • Drosophila
  • Hromosomal passenger complex
  • Meiosis
  • Mitosis
  • Polo-like kinases

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