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MMP20 matrix metallopeptidase 20 [ Homo sapiens (human) ]

Gene ID: 9313, updated on 22-May-2018
Official Symbol
MMP20provided by HGNC
Official Full Name
matrix metallopeptidase 20provided by HGNC
Primary source
See related
Ensembl:ENSG00000137674 MIM:604629; Vega:OTTHUMG00000168081
Gene type
protein coding
RefSeq status
Homo sapiens
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
AI2A2; MMP-20
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 which are activated when cleaved by extracellular proteinases. The protein encoded by this gene degrades amelogenin, the major protein component of dental enamel matrix, and thus thought to play a role in tooth enamel formation. A mutation in this gene, which alters the normal splice pattern and results in premature termination of the encoded protein, has been associated with amelogenesis imperfecta. This gene is part of a cluster of MMP genes located on chromosome 11q22.3. [provided by RefSeq, Aug 2011]
Low expression observed in reference dataset See more
See MMP20 in Genome Data Viewer
Exon count:
Annotation release Status Assembly Chr Location
109 current GRCh38.p12 (GCF_000001405.38) 11 NC_000011.10 (102576835..102625332, complement)
105 previous assembly GRCh37.p13 (GCF_000001405.25) 11 NC_000011.9 (102447566..102496063, complement)

Chromosome 11 - NC_000011.10Genomic Context describing neighboring genes Neighboring gene uncharacterized LOC102723838 Neighboring gene matrix metallopeptidase 7 Neighboring gene uncharacterized LOC101928477 Neighboring gene matrix metallopeptidase 27 Neighboring gene matrix metallopeptidase 8

  • Project title: HPA RNA-seq normal tissues
  • Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
  • BioProject: PRJEB4337
  • Publication: PMID 24309898
  • Analysis date: Wed Jun 15 11:32:44 2016

GeneRIFs: Gene References Into FunctionsWhat's a GeneRIF?

Associated conditions

Description Tests
Amelogenesis imperfecta, hypomaturation type, IIA2
MedGen: C2675858 OMIM: 612529 GeneReviews: Not available
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Identification of 23 new prostate cancer susceptibility loci using the iCOGS custom genotyping array.
  • Assembly of collagen fibrils and other multimeric structures, organism-specific biosystem (from REACTOME)
    Assembly of collagen fibrils and other multimeric structures, organism-specific biosystemCollagen trimers in triple-helical form, referred to as procollagen or collagen molecules, are exported from the ER and trafficked through the Golgi network before secretion into the extracellular sp...
  • Collagen degradation, organism-specific biosystem (from REACTOME)
    Collagen degradation, organism-specific biosystemCollagen fibril diameter and spatial organisation are dependent on the species, tissue type and stage of development (Parry 1988). The lengths of collagen fibrils in mature tissues are largely unknow...
  • Collagen formation, organism-specific biosystem (from REACTOME)
    Collagen formation, organism-specific biosystemCollagen is a family of at least 29 structural proteins derived from over 40 human genes (Myllyharju & Kivirikko 2004). It is the main component of connective tissue, and the most abundant protein in...
  • Degradation of the extracellular matrix, organism-specific biosystem (from REACTOME)
    Degradation of the extracellular matrix, organism-specific biosystemMatrix metalloproteinases (MMPs), previously referred to as matrixins because of their role in degradation of the extracellular matrix (ECM), are zinc and calcium dependent proteases belonging to the...
  • Extracellular matrix organization, organism-specific biosystem (from REACTOME)
    Extracellular matrix organization, organism-specific biosystemThe extracellular matrix is a component of all mammalian tissues, a network consisting largely of the fibrous proteins collagen, elastin and associated-microfibrils, fibronectin and laminins embedded...
  • Matrix Metalloproteinases, organism-specific biosystem (from WikiPathways)
    Matrix Metalloproteinases, organism-specific biosystemMatrix metalloproteinases (MMPs) are zinc-dependent endopeptidases; other family members are adamalysins, serralysins, and astacins. The MMPs belong to a larger family of proteases known as the metzi...
Products Interactant Other Gene Complex Source Pubs Description



Gene Ontology Provided by GOA

Function Evidence Code Pubs
metalloendopeptidase activity IDA
Inferred from Direct Assay
more info
protein binding IPI
Inferred from Physical Interaction
more info
serine-type endopeptidase activity TAS
Traceable Author Statement
more info
zinc ion binding IEA
Inferred from Electronic Annotation
more info
Process Evidence Code Pubs
amelogenesis IEA
Inferred from Electronic Annotation
more info
collagen catabolic process TAS
Traceable Author Statement
more info
extracellular matrix disassembly IEA
Inferred from Electronic Annotation
more info
protein catabolic process IEA
Inferred from Electronic Annotation
more info
proteolysis IEA
Inferred from Electronic Annotation
more info
regulation of enamel mineralization TAS
Traceable Author Statement
more info
Component Evidence Code Pubs
extracellular matrix IEA
Inferred from Electronic Annotation
more info
extracellular region TAS
Traceable Author Statement
more info
extracellular space TAS
Traceable Author Statement
more info
Preferred Names
matrix metalloproteinase-20
enamel metalloproteinase
matrix metalloproteinase 20 (enamelysin)

RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.


  1. NG_012151.1 RefSeqGene

    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_004771.3NP_004762.2  matrix metalloproteinase-20 preproprotein

    See identical proteins and their annotated locations for NP_004762.2

    Status: REVIEWED

    Source sequence(s)
    AJ296177, Y12779
    Consensus CDS
    ENSP00000260228.2, OTTHUMP00000237846, ENST00000260228.2, OTTHUMT00000398012
    Conserved Domains (4) summary
    HX; Hemopexin-like repeats.; Hemopexin is a heme-binding protein that transports heme to the liver. Hemopexin-like repeats occur in vitronectin and some matrix metalloproteinases family (matrixins). The HX repeats of some matrixins bind tissue inhibitor of ...
    ZnMc_MMP; Zinc-dependent metalloprotease, matrix metalloproteinase (MMP) sub-family. MMPs are responsible for a great deal of pericellular proteolysis of extracellular matrix and cell surface molecules, playing crucial roles in morphogenesis, cell fate ...
    Peptidase_M10; Matrixin
    PG_binding_1; Putative peptidoglycan binding domain

RefSeqs of Annotated Genomes: Homo sapiens Annotation Release 109 details...Open this link in a new tab

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p12 Primary Assembly


  1. NC_000011.10 Reference GRCh38.p12 Primary Assembly

    102576835..102625332 complement
    GenBank, FASTA, Sequence Viewer (Graphics)
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