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Structure-kinetic relationship study of CDK8/CycC specific compounds

Schneider, E. V., Bottcher, J., Huber, Robert, Maskos, K. and Neumann, L. 2013. Structure-kinetic relationship study of CDK8/CycC specific compounds. Proceedings of the National Academy of Sciences of the United States of America 110 (20) , pp. 8081-8086. 10.1073/pnas.1305378110

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Abstract

In contrast with the very well explored concept of structure–activity relationship, similar studies are missing for the dependency between binding kinetics and compound structure of a protein ligand complex, the structure–kinetic relationship. Here, we present a structure–kinetic relationship study of the cyclin-dependent kinase 8 (CDK8)/cyclin C (CycC) complex. The scaffold moiety of the compounds is anchored in the kinase deep pocket and extended with diverse functional groups toward the hinge region and the front pocket. These variations can cause the compounds to change from fast to slow binding kinetics, resulting in an improved residence time. The flip of the DFG motif (“DMG” in CDK8) to the inactive DFG-out conformation appears to have relatively little influence on the velocity of binding. Hydrogen bonding with the kinase hinge region contributes to the residence time but has less impact than hydrophobic complementarities within the kinase front pocket.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Publisher: National Academy of Sciences
ISSN: 0027-8424
Last Modified: 24 Jun 2017 11:03
URI: http://orca-mwe.cf.ac.uk/id/eprint/71736

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