2itq: Difference between revisions

Revision as of 19:11, 27 July 2008

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File:2itq.png

Template:STRUCTURE 2itq

CRYSTAL STRUCTURE OF EGFR KINASE DOMAIN G719S MUTATION IN COMPLEX WITH AFN941CRYSTAL STRUCTURE OF EGFR KINASE DOMAIN G719S MUTATION IN COMPLEX WITH AFN941

Template:ABSTRACT PUBMED 17349580

About this StructureAbout this Structure

2ITQ is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

ReferenceReference

Structures of lung cancer-derived EGFR mutants and inhibitor complexes: mechanism of activation and insights into differential inhibitor sensitivity., Yun CH, Boggon TJ, Li Y, Woo MS, Greulich H, Meyerson M, Eck MJ, Cancer Cell. 2007 Mar;11(3):217-27. PMID:17349580

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OCA

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-'''CRYSTAL STRUCTURE OF EGFR KINASE DOMAIN G719S MUTATION IN COMPLEX WITH AFN941'''
+===CRYSTAL STRUCTURE OF EGFR KINASE DOMAIN G719S MUTATION IN COMPLEX WITH AFN941===
-==Overview==
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-Mutations in the EGFR kinase are a cause of non-small-cell lung cancer. To understand their mechanism of activation and effects on drug binding, we studied the kinetics of the L858R and G719S mutants and determined their crystal structures with inhibitors including gefitinib, AEE788, and a staurosporine. We find that the mutations activate the kinase by disrupting autoinhibitory interactions, and that they accelerate catalysis as much as 50-fold in vitro. Structures of inhibitors in complex with both wild-type and mutant kinases reveal similar binding modes for gefitinib and AEE788, but a marked rotation of the staurosporine in the G719S mutant. Strikingly, direct binding measurements show that gefitinib binds 20-fold more tightly to the L858R mutant than to the wild-type enzyme.
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 ==About this Structure==
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 [[Category: Transmembrane]]
 [[Category: Tyrosine-protein kinase]]
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