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Trends Biochem Sci. 1994 Nov;19(11):496-500.

The function(s) of CAK, the p34cdc2-activating kinase.

Author information

1
Yale University, New Haven, CT 06520-8024.

Abstract

The protein kinase p34cdc2 plays a central role in controlling the G2 to mitosis transition in all eukaryotic cells. It is regulated by protein-protein association and by multiple phosphorylations; one of these phosphorylations is absolutely required for activity. Until recently, the molecular identity of the protein kinase that phosphorylates this site was unknown. The subunits of this enzyme have been identified recently as p40MO15, the catalytic subunit, and cyclin H, a regulatory subunit. Similarities between this kinase and the p34cdc2 family of protein kinases suggest how p40MO15 itself may be regulated.

PMID:
7855894
[Indexed for MEDLINE]

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