1t46: Difference between revisions

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{{STRUCTURE_1t46|  PDB=1t46  |  SCENE=  }}  
{{STRUCTURE_1t46|  PDB=1t46  |  SCENE=  }}  


'''STRUCTURAL BASIS FOR THE AUTOINHIBITION AND STI-571 INHIBITION OF C-KIT TYROSINE KINASE'''
===STRUCTURAL BASIS FOR THE AUTOINHIBITION AND STI-571 INHIBITION OF C-KIT TYROSINE KINASE===




==Overview==
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The activity of the c-Kit receptor protein-tyrosine kinase is tightly regulated in normal cells, whereas deregulated c-Kit kinase activity is implicated in the pathogenesis of human cancers. The c-Kit juxtamembrane region is known to have an autoinhibitory function; however the precise mechanism by which c-Kit is maintained in an autoinhibited state is not known. We report the 1.9-A resolution crystal structure of native c-Kit kinase in an autoinhibited conformation and compare it with active c-Kit kinase. Autoinhibited c-Kit is stabilized by the juxtamembrane domain, which inserts into the kinase-active site and disrupts formation of the activated structure. A 1.6-A crystal structure of c-Kit in complex with STI-571 (Imatinib or Gleevec) demonstrates that inhibitor binding disrupts this natural mechanism for maintaining c-Kit in an autoinhibited state. Together, these results provide a structural basis for understanding c-Kit kinase autoinhibition and will facilitate the structure-guided design of specific inhibitors that target the activated and autoinhibited conformations of c-Kit kinase.
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==About this Structure==
==About this Structure==
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[[Category: Sti-571]]
[[Category: Sti-571]]
[[Category: Structure]]
[[Category: Structure]]
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Revision as of 18:16, 27 July 2008

File:1t46.png

Template:STRUCTURE 1t46

STRUCTURAL BASIS FOR THE AUTOINHIBITION AND STI-571 INHIBITION OF C-KIT TYROSINE KINASE

Template:ABSTRACT PUBMED 15123710

About this Structure

1T46 is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Structural basis for the autoinhibition and STI-571 inhibition of c-Kit tyrosine kinase., Mol CD, Dougan DR, Schneider TR, Skene RJ, Kraus ML, Scheibe DN, Snell GP, Zou H, Sang BC, Wilson KP, J Biol Chem. 2004 Jul 23;279(30):31655-63. Epub 2004 Apr 29. PMID:15123710

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