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Activation and Inhibition of Cyclin-dependent Kinase-2 by Phosphorylation; a Molecular Dynamics Study Reveals the Functional Importance of the Glycine-rich Loop

Overview
Journal Protein Sci
Specialty Biochemistry
Date 2004 May 11
PMID 15133164
Citations 31
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Abstract

Nanoseconds long molecular dynamics (MD) trajectories of differently active complexes of human cyclin-dependent kinase 2 (inactive CDK2/ATP, semiactive CDK2/Cyclin A/ATP, fully active pT160-CDK2/Cyclin A/ATP, inhibited pT14-; pY15-; and pT14,pY15,pT160-CDK2/Cyclin A/ATP) were compared. The MD simulations results of CDK2 inhibition by phosphorylation at T14 and/or Y15 sites provide insight into the structural aspects of CDK2 deactivation. The inhibitory sites are localized in the glycine-rich loop (G-loop) positioned opposite the activation T-loop. Phosphorylation of T14 and both inhibitory sites T14 and Y15 together causes ATP misalignment for phosphorylation and G-loop conformational change. This conformational change leads to the opening of the CDK2 substrate binding box. The phosphorylated Y15 residue negatively affects substrate binding or its correct alignment for ATP terminal phospho-group transfer to the CDK2 substrate. The MD simulations of the CDK2 activation process provide results in agreement with previous X-ray data.

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References
1.
Laaksonen L . A graphics program for the analysis and display of molecular dynamics trajectories. J Mol Graph. 1992; 10(1):33-4, 24. DOI: 10.1016/0263-7855(92)80007-z. View

2.
Hanks S, Quinn A . Protein kinase catalytic domain sequence database: identification of conserved features of primary structure and classification of family members. Methods Enzymol. 1991; 200:38-62. DOI: 10.1016/0076-6879(91)00126-h. View

3.
Sebastian B, Kakizuka A, Hunter T . Cdc25M2 activation of cyclin-dependent kinases by dephosphorylation of threonine-14 and tyrosine-15. Proc Natl Acad Sci U S A. 1993; 90(8):3521-4. PMC: 46332. DOI: 10.1073/pnas.90.8.3521. View

4.
De Bondt H, Rosenblatt J, Jancarik J, Jones H, MORGAN D, Kim S . Crystal structure of cyclin-dependent kinase 2. Nature. 1993; 363(6430):595-602. DOI: 10.1038/363595a0. View

5.
Watanabe N, Broome M, Hunter T . Regulation of the human WEE1Hu CDK tyrosine 15-kinase during the cell cycle. EMBO J. 1995; 14(9):1878-91. PMC: 398287. DOI: 10.1002/j.1460-2075.1995.tb07180.x. View