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    MMP20 matrix metallopeptidase 20 [ Homo sapiens (human) ]

    Gene ID: 9313, updated on 21-Oct-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

    Genomic context

    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

    Genomic regions, transcripts, and products


    • 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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    NHGRI GWAS Catalog

    Identification of 23 new prostate cancer susceptibility loci using the iCOGS custom genotyping array.
    NHGRI GWA Catalog

    Pathways from BioSystems

    • 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

    General gene information



    Gene Ontology Provided by GOA

    Function Evidence Code Pubs
    metalloendopeptidase activity IBA
    Inferred from Biological aspect of Ancestor
    more info
    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

    General protein information

    Preferred Names
    matrix metalloproteinase-20
    enamel metalloproteinase
    matrix metalloproteinase 20 (enamelysin)

    NCBI Reference Sequences (RefSeq)

    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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