1shy

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{{STRUCTURE_1shy| PDB=1shy | SCENE= }}
{{STRUCTURE_1shy| PDB=1shy | SCENE= }}
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'''The Crystal Structure of HGF beta-chain in Complex with the Sema Domain of the Met Receptor.'''
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===The Crystal Structure of HGF beta-chain in Complex with the Sema Domain of the Met Receptor.===
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==Overview==
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The Met tyrosine kinase receptor and its ligand, hepatocyte growth factor (HGF), play important roles in normal development and in tumor growth and metastasis. HGF-dependent signaling requires proteolysis from an inactive single-chain precursor into an active alpha/beta-heterodimer. We show that the serine protease-like HGF beta-chain alone binds Met, and report its crystal structure in complex with the Sema and PSI domain of the Met receptor. The Met Sema domain folds into a seven-bladed beta-propeller, where the bottom face of blades 2 and 3 binds to the HGF beta-chain 'active site region'. Mutation of HGF residues in the area that constitutes the active site region in related serine proteases significantly impairs HGF beta binding to Met. Key binding loops in this interface undergo conformational rearrangements upon maturation and explain the necessity of proteolytic cleavage for proper HGF signaling. A crystallographic dimer interface between two HGF beta-chains brings two HGF beta:Met complexes together, suggesting a possible mechanism of Met receptor dimerization and activation by HGF.
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(as it appears on PubMed at http://www.pubmed.gov), where 15167892 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15167892}}
==Disease==
==Disease==
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[[Category: Receptor ectodomain growth factor]]
[[Category: Receptor ectodomain growth factor]]
[[Category: Sema domain]]
[[Category: Sema domain]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 08:43:36 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 11:37:55 2008''

Revision as of 08:37, 29 July 2008

Image:1shy.png

Template:STRUCTURE 1shy

Contents

The Crystal Structure of HGF beta-chain in Complex with the Sema Domain of the Met Receptor.

Template:ABSTRACT PUBMED 15167892

Disease

Known disease associated with this structure: Hepatocellular carcinoma, childhood type OMIM:[164860], Renal cell carcinoma, papillary, familial and sporadic OMIM:[164860], Autism, suseptibility to, 9 OMIM:[164860]

About this Structure

1SHY is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Crystal structure of the HGF beta-chain in complex with the Sema domain of the Met receptor., Stamos J, Lazarus RA, Yao X, Kirchhofer D, Wiesmann C, EMBO J. 2004 Jun 16;23(12):2325-35. Epub 2004 May 27. PMID:15167892

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