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Cell Prolif. 2011 Jun;44(3):205-11. doi: 10.1111/j.1365-2184.2011.00753.x.

Cdc2: a monopotent or pluripotent CDK?

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  • 1Department of Biology, College of Arts & Sciences, Barry University, Miami Shores, FL, USA. xthu@mail.barry.edu

Abstract

Cell cycle progression is controlled by both extracellular and intracellular signalling molecules. It has been generally believed that cdc2/CDK1 only control G(2)-M transition in mammalian and many other higher eukaryotic cells. Accumulating evidence shows that cdc2 not only promotes G(2)-M transition but is also capable of regulating G(1) progress and G(1)-S transition via association with multiple interphase cyclins; cdc2 activity can be inhibited by p21 and p27, two traditional G(1) CDK inhibitors. In addition, cdc2-cyclin B controls pronuclear union in interphase fertilized eggs. These data suggest that cdc2 may be a pluripotent CDK. Although mechanisms responsible for the multiple functions of cdc2 remain to be further investigated, interactions of cdc2 with pRb and with several important transcription factors may provide a clue to the pluripotent role of cdc2.

© 2011 Blackwell Publishing Ltd.

PMID:
21535261
[PubMed - indexed for MEDLINE]
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