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macrophage elastase
Identifiers
EC no. 3.4.24.65
CAS no. 146888-86-0
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / QuickGO
Search
PMC articles
PubMed articles
NCBI proteins
MMP12
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
Aliases MMP12, HME, ME, MME, MMP-12, Matrix metallopeptidase 12
External IDs OMIM: 601046; MGI: 97005; HomoloGene: 20547; GeneCards: MMP12; OMA: MMP12 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_002426

NM_008605
NM_001320076
NM_001320077

RefSeq (protein)

NP_002417

NP_001307005
NP_001307006
NP_032631

Location (UCSC) Chr 11: 102.86 – 102.87 Mb Chr 9: 7.34 – 7.37 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Matrix metalloproteinase-12 (MMP-12) also known as macrophage metalloelastase (MME) or macrophage elastase (ME) is an enzyme that in humans is encoded by the MMP12 gene. [5] [6] [7]

Function

Proteins of the matrix metalloproteinase (MMP) family are involved in the breakdown of extracellular matrix in normal physiological processes, such as embryonic development, reproduction, and tissue remodeling, as well as in disease processes, such as arthritis and metastasis. Most MMP's are secreted as inactive proproteins. The prodomain is cleaved by extracellular proteinases when the enzyme is activated. The active enzyme is constituted by two domains, the catalytic domain responsible for its enzymatic activity and the hemopexin-like domain that in some MMPs plays a role in substrate recognition and can contribute to increasing catalytic efficiency. It is thought that the protein encoded by this gene is cleaved at both ends to yield the active enzyme, but this processing has not been fully described. The enzyme degrades soluble and insoluble elastin. The gene is part of a cluster of MMP genes which localize to chromosome 11q22.3. [5]

Clinical significance

MMP12 may play a role in aneurysm formation [8] and studies in mice and humans suggest a role in the development of emphysema. [9]

References

  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000262406Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000049723Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^ a b "Entrez Gene: MMP12 matrix metallopeptidase 12 (macrophage elastase)".
  6. ^ Shapiro SD, Kobayashi DK, Ley TJ (November 1993). "Cloning and characterization of a unique elastolytic metalloproteinase produced by human alveolar macrophages". J. Biol. Chem. 268 (32): 23824–9. doi: 10.1016/S0021-9258(20)80459-1. PMID  8226919.
  7. ^ Belaaouaj A, Shipley JM, Kobayashi DK, Zimonjic DB, Popescu N, Silverman GA, Shapiro SD (June 1995). "Human macrophage metalloelastase. Genomic organization, chromosomal location, gene linkage, and tissue-specific expression". J. Biol. Chem. 270 (24): 14568–75. doi: 10.1074/jbc.270.24.14568. PMID  7782320.
  8. ^ Curci JA, Liao S, Huffman MD, Shapiro SD, Thompson RW (December 1998). "Expression and localization of macrophage elastase (matrix metalloproteinase-12) in abdominal aortic aneurysms". J. Clin. Invest. 102 (11): 1900–10. doi: 10.1172/JCI2182. PMC  509141. PMID  9835614.
  9. ^ Woodruff PG, Koth LL, Yang YH, Rodriguez MW, Favoreto S, Dolganov GM, Paquet AC, Erle DJ (December 2005). "A Distinctive Alveolar Macrophage Activation State Induced by Cigarette Smoking". Am. J. Respir. Crit. Care Med. 172 (11): 1383–92. doi: 10.1164/rccm.200505-686OC. PMC  2718436. PMID  16166618.

Further reading

External links

  • The MEROPS online database for peptidases and their inhibitors: M10.009
  • PDBe-KB provides an overview of all the structure information available in the PDB for Human Macrophage metalloelastase (MMP12)