Trends in Cell Biology
Volume 1, Issue 5, November 1991, Pages 117-121
Journal home page for Trends in Cell Biology

Review
Cyclin-dependent kinases: a new cell cycle motif?

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Abstract

Increasing evidence suggests that the eukaryotic cell cycle is controlled at several checkpoints by different members of a novel class of protein kinase, the cyclin-dependent kinases. To phosphorylate their substrates, these enzymes bind to proteins of the cyclin family - proteins that are synthesized and degraded at specific points in each cell cycle. The most well known of these kinases is the 34 kDa product of the cdc2 gene in fission yeast, p34cdc2; however, several putative cyclin-dependent kinases have now been cloned or identified. Some of these closely resemble p34cdc2. Here we review these new proteins, their potential roles in the cell cycle and the cyclins with which they may interact.

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