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Crystal structure of an active form of human MMP-1.

Abstract：

:The extracellular matrix is a dynamic environment that constantly undergoes remodelling and degradation during vital physiological processes such as angiogenesis, wound healing, and development. Unbalanced extracellular matrix breakdown is associated with many diseases such as arthritis, cancer and fibrosis. Interstitial collagen is degraded by matrix metalloproteinases with collagenolytic activity by MMP-1, MMP-8 and MMP-13, collectively known as the collagenases. Matrix metalloproteinase 1 (MMP-1) plays a pivotal role in degradation of interstitial collagen types I, II, and III. Here, we report the crystal structure of the active form of human MMP-1 at 2.67 A resolution. This is the first MMP-1 structure that is free of inhibitor and a water molecule essential for peptide hydrolysis is observed coordinated with the active site zinc. Comparing this structure with the human proMMP-1 shows significant structural differences, mainly in the relative orientation of the hemopexin domain, between the pro form and active form of the human enzyme.

journal_name

J Mol Biol

journal_title

Journal of molecular biology

authors

Iyer S,Visse R,Nagase H,Acharya KR

doi

10.1016/j.jmb.2006.06.079

subject

Has Abstract

pub_date

2006-09-08 00:00:00

pages

78-88

issue

1

eissn

0022-2836

issn

1089-8638

pii

S0022-2836(06)00836-9

journal_volume

362

pub_type

杂志文章

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