1ums
From Proteopedia
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'''STROMELYSIN-1 CATALYTIC DOMAIN WITH HYDROPHOBIC INHIBITOR BOUND, PH 7.0, 32OC, 20 MM CACL2, 15% ACETONITRILE; NMR ENSEMBLE OF 20 STRUCTURES''' | '''STROMELYSIN-1 CATALYTIC DOMAIN WITH HYDROPHOBIC INHIBITOR BOUND, PH 7.0, 32OC, 20 MM CACL2, 15% ACETONITRILE; NMR ENSEMBLE OF 20 STRUCTURES''' | ||
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[[Category: Kurochkin, A V.]] | [[Category: Kurochkin, A V.]] | ||
[[Category: Zuiderweg, E R.P.]] | [[Category: Zuiderweg, E R.P.]] | ||
| - | [[Category: | + | [[Category: Matrix metalloproteinase]] |
| - | [[Category: | + | [[Category: Metzincin]] |
| - | [[Category: | + | [[Category: Zinc hydrolase]] |
| - | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 11:26:29 2008'' | |
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | |
Revision as of 08:26, 3 May 2008
STROMELYSIN-1 CATALYTIC DOMAIN WITH HYDROPHOBIC INHIBITOR BOUND, PH 7.0, 32OC, 20 MM CACL2, 15% ACETONITRILE; NMR ENSEMBLE OF 20 STRUCTURES
Overview
Stromelysin, a representative matrix metalloproteinase and target of drug development efforts, plays a prominent role in the pathological proteolysis associated with arthritis and secondarily in that of cancer metastasis and invasion. To provide a structural template to aid the development of therapeutic inhibitors, we have determined a medium-resolution structure of a 20-kDa complex of human stromelysin's catalytic domain with a hydrophobic peptidic inhibitor using multinuclear, multidimensional NMR spectroscopy. This domain of this zinc hydrolase contains a mixed beta-sheet comprising one antiparallel strand and four parallel strands, three helices, and a methionine-containing turn near the catalytic center. The ensemble of 20 structures was calculated using, on average, 8 interresidue NOE restraints per residue for the 166-residue protein fragment complexed with a 4-residue substrate analogue. The mean RMS deviation (RMSD) to the average structure for backbone heavy atoms is 0.91 A and for all heavy atoms is 1.42 A. The structure has good stereochemical properties, including its backbone torsion angles. The beta-sheet and alpha-helices of the catalytic domains of human stromelysin (NMR model) and human fibroblast collagenase (X-ray crystallographic model of Lovejoy B et al., 1994b, Biochemistry 33:8207-8217) superimpose well, having a pairwise RMSD for backbone heavy atoms of 2.28 A when three loop segments are disregarded. The hydroxamate-substituted inhibitor binds across the hydrophobic active site of stromelysin in an extended conformation. The first hydrophobic side chain is deeply buried in the principal S'1 subsite, the second hydrophobic side chain is located on the opposite side of the inhibitor backbone in the hydrophobic S'2 surface subsite, and a third hydrophobic side chain (P'3) lies at the surface.
About this Structure
1UMS is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Solution structure of the catalytic domain of human stromelysin complexed with a hydrophobic inhibitor., Van Doren SR, Kurochkin AV, Hu W, Ye QZ, Johnson LL, Hupe DJ, Zuiderweg ER, Protein Sci. 1995 Dec;4(12):2487-98. PMID:8580839 Page seeded by OCA on Sat May 3 11:26:29 2008
