PMID- 10085137 OWN - NLM STAT- MEDLINE DCOM- 19990429 LR - 20210209 IS - 0021-9258 (Print) IS - 0021-9258 (Linking) VI - 274 IP - 13 DP - 1999 Mar 26 TI - Identification and characterization of the fifth membrane-type matrix metalloproteinase MT5-MMP. PG - 8925-32 AB - A new member of the membrane-type matrix metalloproteinase (MT-MMP) subfamily tentatively named MT5-MMP was isolated from mouse brain cDNA library. It is predicted to contain (i) a candidate signal sequence, (ii) a propeptide region with the highly conserved PRCGVPD sequence, (iii) a potential furin recognition motif RRRRNKR, (iv) a zinc-binding catalytic domain, (v) a hemopexin-like domain, (vi) a 24-residue hydrophobic domain as a potential transmembrane domain, and (vii) a short cytosolic domain. Reverse transcriptase-polymerase chain reaction analysis of its transcripts indicates that MT5-MMP is expressed in a brain-specific manner consistent with the origin of its EST clone from cerebellum. It is also highly expressed during embryonic development at stages day 11 and 15. Like other MT-MMPs, MT5-MMP specifically activates progelatinase A when co-expressed in Madin-Darby canine kidney cells. Its ability to activate progelatinase A is dependent on its proteolytic activity since a mutation converting Glu to Ala in the zinc binding motif HE255LGH renders MT5-MMP inactive against progelatinase A. In contrast to other MT-MMPs, MT5-MMP tends to shed from cell surface as soluble proteinases, thus offering flexibility as both a cell bound and soluble proteinase for extracellular matrix remodeling processes. Taken together, these properties serve to distinguish MT5-MMP as a versatile MT-MMP playing an important role in extracellular matrix remodeling events in the brain and during embryonic development. FAU - Pei, D AU - Pei D AD - Department of Pharmacology, University of Minnesota, Minneapolis, Minnesota 55455, USA. peixx003@tc.umn.edu LA - eng SI - GENBANK/AJ010262 GR - CA76308/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - J Biol Chem JT - The Journal of biological chemistry JID - 2985121R RN - 0 (Enzyme Precursors) RN - 0 (RNA, Messenger) RN - EC 3.4.24.- (Gelatinases) RN - EC 3.4.24.- (Matrix Metalloproteinases, Membrane-Associated) RN - EC 3.4.24.- (Metalloendopeptidases) RN - EC 3.4.24.- (Mmp24 protein, mouse) RN - EC 3.4.24.- (progelatinase) SB - IM MH - Amino Acid Sequence MH - Animals MH - Base Sequence MH - Brain/embryology/*enzymology MH - Cell Line MH - Cloning, Molecular MH - Embryonic and Fetal Development MH - Enzyme Activation/genetics MH - Enzyme Precursors/metabolism MH - Gelatinases/metabolism MH - Gene Expression Regulation, Developmental/genetics MH - Gene Expression Regulation, Enzymologic/genetics MH - Matrix Metalloproteinases, Membrane-Associated MH - Metalloendopeptidases/chemistry/*genetics/metabolism MH - Mice MH - Molecular Sequence Data MH - Mutation MH - RNA, Messenger/metabolism MH - Sequence Analysis, DNA MH - Sequence Homology, Amino Acid EDAT- 1999/03/20 00:00 MHDA- 1999/03/20 00:01 CRDT- 1999/03/20 00:00 PHST- 1999/03/20 00:00 [pubmed] PHST- 1999/03/20 00:01 [medline] PHST- 1999/03/20 00:00 [entrez] AID - 10.1074/jbc.274.13.8925 [doi] AID - S0021-9258(19)87414-8 [pii] PST - ppublish SO - J Biol Chem. 1999 Mar 26;274(13):8925-32. doi: 10.1074/jbc.274.13.8925.