The second dimer interface of MT1-MMP, the transmembrane domain, is essential for ProMMP-2 activation on the cell surface.

Activation of proMMP-2 and cell surface collagenolysis are important activities of membrane-type 1 matrix metalloproteinase (MT1-MMP) to promote cell migration in tissue, and these activities are regulated by homodimerization of MT1-MMP on the cell surface. In this study, we have identified the tran...

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Main Authors: Itoh, Y, Ito, N, Nagase, H, Seiki, M
Format: Journal article
Language:English
Published: 2008
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author Itoh, Y
Ito, N
Nagase, H
Seiki, M
author_facet Itoh, Y
Ito, N
Nagase, H
Seiki, M
author_sort Itoh, Y
collection OXFORD
description Activation of proMMP-2 and cell surface collagenolysis are important activities of membrane-type 1 matrix metalloproteinase (MT1-MMP) to promote cell migration in tissue, and these activities are regulated by homodimerization of MT1-MMP on the cell surface. In this study, we have identified the transmembrane domain as a second dimer interface of MT1-MMP in addition to the previously identified hemopexin domain. Our analyses indicate that these two modes of dimerization have different roles; transmembrane-dependent dimerization is critical for proMMP-2 activation, whereas hemopexin-dependent dimerization is important for degradation of collagen on the cell surface. Our finding provides new insight into the potential molecular arrangement of MT1-MMP contributing to its function on the cell surface.
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spelling oxford-uuid:a0949296-d654-4825-85f3-a48770b569ae2022-03-27T02:06:27ZThe second dimer interface of MT1-MMP, the transmembrane domain, is essential for ProMMP-2 activation on the cell surface.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a0949296-d654-4825-85f3-a48770b569aeEnglishSymplectic Elements at Oxford2008Itoh, YIto, NNagase, HSeiki, MActivation of proMMP-2 and cell surface collagenolysis are important activities of membrane-type 1 matrix metalloproteinase (MT1-MMP) to promote cell migration in tissue, and these activities are regulated by homodimerization of MT1-MMP on the cell surface. In this study, we have identified the transmembrane domain as a second dimer interface of MT1-MMP in addition to the previously identified hemopexin domain. Our analyses indicate that these two modes of dimerization have different roles; transmembrane-dependent dimerization is critical for proMMP-2 activation, whereas hemopexin-dependent dimerization is important for degradation of collagen on the cell surface. Our finding provides new insight into the potential molecular arrangement of MT1-MMP contributing to its function on the cell surface.
spellingShingle Itoh, Y
Ito, N
Nagase, H
Seiki, M
The second dimer interface of MT1-MMP, the transmembrane domain, is essential for ProMMP-2 activation on the cell surface.
title The second dimer interface of MT1-MMP, the transmembrane domain, is essential for ProMMP-2 activation on the cell surface.
title_full The second dimer interface of MT1-MMP, the transmembrane domain, is essential for ProMMP-2 activation on the cell surface.
title_fullStr The second dimer interface of MT1-MMP, the transmembrane domain, is essential for ProMMP-2 activation on the cell surface.
title_full_unstemmed The second dimer interface of MT1-MMP, the transmembrane domain, is essential for ProMMP-2 activation on the cell surface.
title_short The second dimer interface of MT1-MMP, the transmembrane domain, is essential for ProMMP-2 activation on the cell surface.
title_sort second dimer interface of mt1 mmp the transmembrane domain is essential for prommp 2 activation on the cell surface
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