2itz: Difference between revisions

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[[Image:2itz.jpg|left|200px]]
{{Seed}}
[[Image:2itz.png|left|200px]]


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{{STRUCTURE_2itz|  PDB=2itz  |  SCENE=  }}  
{{STRUCTURE_2itz|  PDB=2itz  |  SCENE=  }}  


'''CRYSTAL STRUCTURE OF EGFR KINASE DOMAIN L858R MUTATION IN COMPLEX WITH IRESSA'''
===CRYSTAL STRUCTURE OF EGFR KINASE DOMAIN L858R MUTATION IN COMPLEX WITH IRESSA===




==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.
The line below this paragraph, {{ABSTRACT_PUBMED_17349580}}, adds the Publication Abstract to the page
(as it appears on PubMed at http://www.pubmed.gov), where 17349580 is the PubMed ID number.
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{{ABSTRACT_PUBMED_17349580}}


==About this Structure==
==About this Structure==
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[[Category: Tyrosine-protein kinase]]
[[Category: Tyrosine-protein kinase]]
[[Category: Zd1839]]
[[Category: Zd1839]]
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