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Nature. 1995 Jul 27;376(6538):313-20.

Mechanism of CDK activation revealed by the structure of a cyclinA-CDK2 complex.

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  • 1Cellular Biochemistry and Biophysics Program, Memorial Sloan-Kettering Cancer Center, New York, New York 10021, USA.

Abstract

The crystal structure of the human cyclinA-cyclin-dependent kinase2 (CDK2)-ATP complex has been determined at 2.3 A resolution. CyclinA binds to one side of CDK2's catalytic cleft, inducing large conformational changes in its PSTAIRE helix and T-loop. These changes activate the kinase by realigning active site residues and relieving the steric blockade at the entrance of the catalytic cleft.

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PMID:
7630397
[PubMed - indexed for MEDLINE]
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