2iw9 | pdb_00002iw9

File:2iw9.gif

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2iw9, resolution 2.00Å
Sites:	AC1
Ligands:	MG, 4SP and SGM
Activity:	Transferred entry: 2.7.11.1, with EC number 2.7.1.37
Coordinates:	save as pdb, mmCIF, xml

STRUCTURE OF HUMAN THR160-PHOSPHO CDK2-CYCLIN A COMPLEXED WITH A BISANILINOPYRIMIDINE INHIBITOR

Overview

Cyclin dependent kinases are a key family of kinases involved in cell cycle regulation and are an attractive target for cancer chemotherapy. The roles of four residues of the cyclin-dependent kinase active site in inhibitor selectivity were investigated by producing cyclin-dependent kinase 2 mutants bearing equivalent cyclin-dependent kinase 4 residues, namely F82H, L83V, H84D, and K89T. Assay of the mutants with a cyclin-dependent kinase 4-selective bisanilinopyrimidine shows that the K89T mutation is primarily responsible for the selectivity of this compound. Use of the cyclin-dependent kinase 2-selective 6-cyclohexylmethoxy-2-(4'-sulfamoylanilino)purine (NU6102) shows that K89T has no role in the selectivity, while the remaining three mutations have a cumulative influence. The results indicate that certain residues that are not frequently considered in structure-aided kinase inhibitor design have an important role to play.

About this Structure

2IW9 is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Dissecting the determinants of cyclin-dependent kinase 2 and cyclin-dependent kinase 4 inhibitor selectivity., Pratt DJ, Bentley J, Jewsbury P, Boyle FT, Endicott JA, Noble ME, J Med Chem. 2006 Sep 7;49(18):5470-7. PMID:16942020

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