2gs6: Difference between revisions
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|PDB= 2gs6 |SIZE=350|CAPTION= <scene name='initialview01'>2gs6</scene>, resolution 2.600Å | |PDB= 2gs6 |SIZE=350|CAPTION= <scene name='initialview01'>2gs6</scene>, resolution 2.600Å | ||
|SITE= | |SITE= | ||
|LIGAND= | |LIGAND= <scene name='pdbligand=112:THIOPHOSPHORIC+ACID+O-((ADENOSYL-PHOSPHO)PHOSPHO)-S-ACETAMIDYL-DIESTER'>112</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene> | ||
|ACTIVITY= [http://en.wikipedia.org/wiki/Receptor_protein-tyrosine_kinase Receptor protein-tyrosine kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.10.1 2.7.10.1] | |ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Receptor_protein-tyrosine_kinase Receptor protein-tyrosine kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.10.1 2.7.10.1] </span> | ||
|GENE= EGFR, ERBB1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | |GENE= EGFR, ERBB1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | ||
|DOMAIN= | |||
|RELATEDENTRY=[[2gs2|2GS2]], [[2gs7|2GS7]] | |||
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2gs6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2gs6 OCA], [http://www.ebi.ac.uk/pdbsum/2gs6 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2gs6 RCSB]</span> | |||
}} | }} | ||
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==Overview== | ==Overview== | ||
The mechanism by which the epidermal growth factor receptor (EGFR) is activated upon dimerization has eluded definition. We find that the EGFR kinase domain can be activated by increasing its local concentration or by mutating a leucine (L834R) in the activation loop, the phosphorylation of which is not required for activation. This suggests that the kinase domain is intrinsically autoinhibited, and an intermolecular interaction promotes its activation. Using further mutational analysis and crystallography we demonstrate that the autoinhibited conformation of the EGFR kinase domain resembles that of Src and cyclin-dependent kinases (CDKs). EGFR activation results from the formation of an asymmetric dimer in which the C-terminal lobe of one kinase domain plays a role analogous to that of cyclin in activated CDK/cyclin complexes. The CDK/cyclin-like complex formed by two kinase domains thus explains the activation of EGFR-family receptors by homo- or heterodimerization. | The mechanism by which the epidermal growth factor receptor (EGFR) is activated upon dimerization has eluded definition. We find that the EGFR kinase domain can be activated by increasing its local concentration or by mutating a leucine (L834R) in the activation loop, the phosphorylation of which is not required for activation. This suggests that the kinase domain is intrinsically autoinhibited, and an intermolecular interaction promotes its activation. Using further mutational analysis and crystallography we demonstrate that the autoinhibited conformation of the EGFR kinase domain resembles that of Src and cyclin-dependent kinases (CDKs). EGFR activation results from the formation of an asymmetric dimer in which the C-terminal lobe of one kinase domain plays a role analogous to that of cyclin in activated CDK/cyclin complexes. The CDK/cyclin-like complex formed by two kinase domains thus explains the activation of EGFR-family receptors by homo- or heterodimerization. | ||
==About this Structure== | ==About this Structure== | ||
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[[Category: Shen, K.]] | [[Category: Shen, K.]] | ||
[[Category: Zhang, X.]] | [[Category: Zhang, X.]] | ||
[[Category: atp-analog peptide conjugate]] | [[Category: atp-analog peptide conjugate]] | ||
[[Category: egfr]] | [[Category: egfr]] | ||
[[Category: kinase]] | [[Category: kinase,active]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 03:20:46 2008'' | ||