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J Mol Model. 2013 Jun;19(6):2635-45. doi: 10.1007/s00894-013-1815-y. Epub 2013 Mar 23.

Molecular dynamic simulations give insight into the mechanism of binding between 2-aminothiazole inhibitors and CDK5.

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1
State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China.

Abstract

Molecular docking, molecular dynamics (MD) simulations, and binding free energy analysis were performed to reveal differences in the binding affinities between five 2-aminothiazole inhibitors and CDK5. The hydrogen bonding and hydrophobic interactions between inhibitors and adjacent residues are analyzed and discussed. The rank of calculated binding free energies using the MM-PBSA method is consistent with experimental result. The results illustrate that hydrogen bonds with Cys83 favor inhibitor binding. The van der Waals interactions, especially the important contact with Ile10, dominate in the binding free energy and play a crucial role in distinguishing the different bioactivity of the five inhibitors.

PMID:
23525963
DOI:
10.1007/s00894-013-1815-y
[Indexed for MEDLINE]
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