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Protein

Matrix metalloproteinase-21

Gene

mmp21

Organism
Xenopus laevis (African clawed frog)
Status
Reviewed-Annotation score:

Annotation score:4 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at transcript leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the ‘protein existence’ evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Plays a specialized role in the generation of left-right asymmetry during embryogenesis. May act as a negative regulator of the NOTCH-signaling pathway.By similarity

<p>This subsection of the ‘Function’ section provides information relevant to cofactors. A cofactor is any non-protein substance required for a protein to be catalytically active. Some cofactors are inorganic, such as the metal atoms zinc, iron, and copper in various oxidation states. Others, such as most vitamins, are organic.<p><a href='/help/cofactor' target='_top'>More...</a></p>Cofactori

Protein has several cofactor binding sites:
  • Zn2+By similarityNote: Binds 1 zinc ion per subunit.By similarity
  • Ca2+By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Function’ section indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the ‘Description’ field.<p><a href='/help/metal' target='_top'>More...</a></p>Metal bindingi135Zinc; in inhibited formBy similarity1
Metal bindingi318Zinc; catalyticPROSITE-ProRule annotation1
<p>This subsection of the ‘Function’ section is used for enzymes and indicates the residues directly involved in catalysis.<p><a href='/help/act_site' target='_top'>More...</a></p>Active sitei319PROSITE-ProRule annotation1
Metal bindingi322Zinc; catalyticPROSITE-ProRule annotation1
Metal bindingi328Zinc; catalyticPROSITE-ProRule annotation1

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionHydrolase, Metalloprotease, Protease
LigandCalcium, Metal-binding, Zinc

Protein family/group databases

MEROPS protease database

More...
MEROPSi
M10.026

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Matrix metalloproteinase-21 (EC:3.4.24.-)
Short name:
MMP-21
Short name:
xMMP
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: ‘Name’, ‘Synonyms’, ‘Ordered locus names’ and ‘ORF names’.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:mmp21
Synonyms:mmp
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiXenopus laevis (African clawed frog)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the ‘taxonomic identifier’ or ‘taxid’.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri8355 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiAmphibiaBatrachiaAnuraPipoideaPipidaeXenopodinaeXenopusXenopus

Organism-specific databases

Xenopus laevis and tropicalis biology and genomics resource

More...
Xenbasei
XB-GENE-960307 mmp21

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Secreted

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘PTM / Processing’ section denotes the presence of an N-terminal signal peptide.<p><a href='/help/signal' target='_top'>More...</a></p>Signal peptidei1 – 22Sequence analysisAdd BLAST22
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section describes a propeptide, which is a part of a protein that is cleaved during maturation or activation. Once cleaved, a propeptide generally has no independent biological function.<p><a href='/help/propep' target='_top'>More...</a></p>PropeptideiPRO_000002884423 – 180By similarityAdd BLAST158
<p>This subsection of the ‘PTM / Processing’ section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_0000028845181 – 604Matrix metalloproteinase-21Add BLAST424

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section specifies the position and type of each covalently attached glycan group (mono-, di-, or polysaccharide).<p><a href='/help/carbohyd' target='_top'>More...</a></p>Glycosylationi158N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi165N-linked (GlcNAc...) asparagineSequence analysis1
<p>This subsection of the PTM / Processing":/help/ptm_processing_section section describes the positions of cysteine residues participating in disulfide bonds.<p><a href='/help/disulfid' target='_top'>More...</a></p>Disulfide bondi364 ↔ 595By similarity
Glycosylationi404N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi407N-linked (GlcNAc...) asparagineSequence analysis1

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationi

The precursor is cleaved by a furin endopeptidase.By similarity

Keywords - PTMi

Cleavage on pair of basic residues, Disulfide bond, Glycoprotein, Zymogen

Miscellaneous databases

CutDB - Proteolytic event database

More...
PMAP-CutDBi
O93470

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the ‘Expression’ section provides information on the expression of the gene product at various stages of a cell, tissue or organism development. By default, the information is derived from experiments at the mRNA level, unless specified ‘at the protein level’.<p><a href='/help/developmental_stage' target='_top'>More...</a></p>Developmental stagei

Transiently expressed during embryo development. Undetected in the blastula stage embryo, induced in gastrula embryo, expressed in neurula embryo, and then down-regulated in pretailbud embryo.1 Publication

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

Protein Model Portal of the PSI-Nature Structural Biology Knowledgebase

More...
ProteinModelPortali
O93470

Database of comparative protein structure models

More...
ModBasei
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section indicates the positions and types of repeated sequence motifs or repeated domains within the protein.<p><a href='/help/repeat' target='_top'>More...</a></p>Repeati365 – 424Hemopexin 1Add BLAST60
Repeati426 – 482Hemopexin 2Add BLAST57
Repeati483 – 531Hemopexin 3Add BLAST49
Repeati538 – 594Hemopexin 4Add BLAST57

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section describes a short (usually not more than 20 amino acids) conserved sequence motif of biological significance.<p><a href='/help/motif' target='_top'>More...</a></p>Motifi133 – 140Cysteine switchBy similarity8

<p>This subsection of the ‘Family and domains’ section provides general information on the biological role of a domain. The term ‘domain’ is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

The conserved cysteine present in the cysteine-switch motif binds the catalytic zinc ion, thus inhibiting the enzyme. The dissociation of the cysteine from the zinc ion upon the activation-peptide release activates the enzyme.

<p>This subsection of the ‘Family and domains’ section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the peptidase M10A family.Curated

Keywords - Domaini

Repeat, Signal

Phylogenomic databases

The HOVERGEN Database of Homologous Vertebrate Genes

More...
HOVERGENi
HBG052483

KEGG Orthology (KO)

More...
KOi
K08000

Family and domain databases

Conserved Domains Database

More...
CDDi
cd04278 ZnMc_MMP, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
2.110.10.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR036375 Hemopexin-like_dom_sf
IPR018487 Hemopexin-like_repeat
IPR033739 M10A_MMP
IPR001818 Pept_M10_metallopeptidase
IPR021190 Pept_M10A
IPR006026 Peptidase_Metallo
IPR002477 Peptidoglycan-bd-like
IPR036365 PGBD-like_sf

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00045 Hemopexin, 3 hits
PF00413 Peptidase_M10, 1 hit
PF01471 PG_binding_1, 1 hit

PIRSF; a whole-protein classification database

More...
PIRSFi
PIRSF001191 Peptidase_M10A_matrix, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00138 MATRIXIN

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00120 HX, 4 hits
SM00235 ZnMc, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF47090 SSF47090, 1 hit
SSF50923 SSF50923, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS51642 HEMOPEXIN_2, 4 hits
PS00142 ZINC_PROTEASE, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>.<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

O93470-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MPSIKLLVWC CLCVISPRLC HSEKLFHSRD RSDLQPSAIE QAELVKDMLS
60 70 80 90 100
AQQFLAKYGW TQPVIWDPSS TNENEPLKDF SLMQEGVCNP RQEVAEPTKS
110 120 130 140 150
PQFIDALKKF QKLNNLPVTG TLDDATINAM NKPRCGVPDN QMAKKETEKP
160 170 180 190 200
TAAQSLENKT KDSENVTQQN PDPPKIRRKR FLDMLMYSNK YREEQEALQK
210 220 230 240 250
STGKVFTKKL LKWRMIGEGY SNQLSINEQR YVFRLAFRMW SEVMPLDFEE
260 270 280 290 300
DNTSPLSQID IKLGFGRGRH LGCSRAFDGS GQEFAHAWFL GDIHFDDDEH
310 320 330 340 350
FTAPSSEHGI SLLKVAAHEI GHVLGLSHIH RVGSIMQPNY IPQDSGFELD
360 370 380 390 400
LSDRRAIQNL YGSCEGPFDT AFDWIYKEKN QYGELVVRYN TYFFRNSWYW
410 420 430 440 450
MYENRSNRTR YGDPLAIANG WHGIPVQNID AFVHVWTWTR DASYFFKGTQ
460 470 480 490 500
YWRYDSENDK AYAEDAQGKS YPRLISEGFP GIPSPINAAY FDRRRQYIYF
510 520 530 540 550
FRDSQVFAFD INRNRVAPDF PKRILDFFPA VAANNHPKGN IDVAYYSYTY
560 570 580 590 600
SSLFLFKGKE FWKVVSDKDR RQNPSLPYNG LFPRRAISQQ WFDICNVHPS

LLKI
Length:604
Mass (Da):70,146
Last modified:November 1, 1998 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i4E7BC8857F660417
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
U82541 mRNA Translation: AAC21447.1

NCBI Reference Sequences

More...
RefSeqi
NP_001079285.1, NM_001085816.1

UniGene gene-oriented nucleotide sequence clusters

More...
UniGenei
Xl.285

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
378572

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
xla:378572

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U82541 mRNA Translation: AAC21447.1
RefSeqiNP_001079285.1, NM_001085816.1
UniGeneiXl.285

3D structure databases

ProteinModelPortaliO93470
ModBaseiSearch...
MobiDBiSearch...

Protein family/group databases

MEROPSiM10.026

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi378572
KEGGixla:378572

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
378572
XenbaseiXB-GENE-960307 mmp21

Phylogenomic databases

HOVERGENiHBG052483
KOiK08000

Miscellaneous databases

PMAP-CutDBiO93470

Family and domain databases

CDDicd04278 ZnMc_MMP, 1 hit
Gene3Di2.110.10.10, 1 hit
InterProiView protein in InterPro
IPR036375 Hemopexin-like_dom_sf
IPR018487 Hemopexin-like_repeat
IPR033739 M10A_MMP
IPR001818 Pept_M10_metallopeptidase
IPR021190 Pept_M10A
IPR006026 Peptidase_Metallo
IPR002477 Peptidoglycan-bd-like
IPR036365 PGBD-like_sf
PfamiView protein in Pfam
PF00045 Hemopexin, 3 hits
PF00413 Peptidase_M10, 1 hit
PF01471 PG_binding_1, 1 hit
PIRSFiPIRSF001191 Peptidase_M10A_matrix, 1 hit
PRINTSiPR00138 MATRIXIN
SMARTiView protein in SMART
SM00120 HX, 4 hits
SM00235 ZnMc, 1 hit
SUPFAMiSSF47090 SSF47090, 1 hit
SSF50923 SSF50923, 1 hit
PROSITEiView protein in PROSITE
PS51642 HEMOPEXIN_2, 4 hits
PS00142 ZINC_PROTEASE, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the ‘Entry information’ section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiMMP21_XENLA
<p>This subsection of the ‘Entry information’ section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called ‘Primary (citable) accession number’.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: O93470
<p>This subsection of the ‘Entry information’ section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification (‘Last modified’). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 19, 2004
Last sequence update: November 1, 1998
Last modified: February 28, 2018
This is version 100 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the ‘Entry information’ section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

<p>This section contains any relevant information that doesn’t fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. Peptidase families
    Classification of peptidase families and list of entries
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