1qic

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{{STRUCTURE_1qic| PDB=1qic | SCENE= }}
{{STRUCTURE_1qic| PDB=1qic | SCENE= }}
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'''CRYSTAL STRUCTURE OF STROMELYSIN CATALYTIC DOMAIN'''
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===CRYSTAL STRUCTURE OF STROMELYSIN CATALYTIC DOMAIN===
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==Overview==
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Effective inhibitors of matrix metalloproteinases (MMPs), a family of connective tissue-degrading enzymes, could be useful for the treatment of diseases such as cancer, multiple sclerosis, and arthritis. Many of the known MMP inhibitors are derived from peptide substrates, with high potency in vitro but little selectivity among MMPs and poor bioavailability. We have discovered nonpeptidic MMP inhibitors with improved properties, and report here the crystal structures of human stromelysin-1 catalytic domain (SCD) complexed with four of these inhibitors. The structures were determined and refined at resolutions ranging from 1.64 to 2.0 A. Each inhibitor binds in the active site of SCD such that a bulky diphenyl piperidine moiety penetrates a deep, predominantly hydrophobic S'1 pocket. The active site structure of the SCD is similar in all four inhibitor complexes, but differs substantially from the peptide hydroxamate complex, which has a smaller side chain bound in the S'1 pocket. The largest differences occur in the loop forming the "top" of this pocket. The occupation of these nonpeptidic inhibitors in the S'1 pocket provides a structural basis to explain their selectivity among MMPs. An analysis of the unique binding mode predicts structural modifications to design improved MMP inhibitors.
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(as it appears on PubMed at http://www.pubmed.gov), where 10422833 is the PubMed ID number.
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{{ABSTRACT_PUBMED_10422833}}
==About this Structure==
==About this Structure==
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[[Category: Metzincin]]
[[Category: Metzincin]]
[[Category: Stromelysin-1]]
[[Category: Stromelysin-1]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 06:18:31 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 11:52:59 2008''

Revision as of 08:53, 28 July 2008

Image:1qic.png

Template:STRUCTURE 1qic

CRYSTAL STRUCTURE OF STROMELYSIN CATALYTIC DOMAIN

Template:ABSTRACT PUBMED 10422833

About this Structure

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

Reference

X-ray structure of human stromelysin catalytic domain complexed with nonpeptide inhibitors: implications for inhibitor selectivity., Pavlovsky AG, Williams MG, Ye QZ, Ortwine DF, Purchase CF 2nd, White AD, Dhanaraj V, Roth BD, Johnson LL, Hupe D, Humblet C, Blundell TL, Protein Sci. 1999 Jul;8(7):1455-62. PMID:10422833

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