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  • SUMMARY

  • TISSUE

  • BRAIN

  • SINGLE CELL

  • SUBCELL

  • CANCER

  • BLOOD

  • CELL LINE

  • STRUCTURE

  • INTERACTION

  • COMP
PROTEIN SUMMARY GENE INFORMATION RNA DATA ANTIBODY DATA
GENERAL INFORMATIONi

General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.

Gene namei

Official gene symbol, which is typically a short form of the gene name, according to HGNC.

COMP
Synonyms EDM1, EPD1, MED, PSACH, THBS5
Gene descriptioni

Full gene name according to HGNC.

Cartilage oligomeric matrix protein
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

Read more
Disease related genes
Human disease related genes
Plasma proteins
Predicted locationi

All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.

  • Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.
  • Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).

The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.

Secreted, Intracellular
Protein evidence Evidence at protein level (all genes)
GENE INFORMATIONi

Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.

Chromosome 19
Cytoband p13.11
Chromosome location (bp) 18782773 - 18791305
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

3
Ensembl ENSG00000105664 (version 109)
Entrez gene 1311
HGNC HGNC:2227
UniProt P49747
GeneCards COMP
Antibodypedia COMP antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

Plays a role in the structural integrity of cartilage via its interaction with other extracellular matrix proteins such as the collagens and fibronectin. Can mediate the interaction of chondrocytes with the cartilage extracellular matrix through interaction with cell surface integrin receptors 1, 2. Could play a role in the pathogenesis of osteoarthritis 3. Potent suppressor of apoptosis in both primary chondrocytes and transformed cells. Suppresses apoptosis by blocking the activation of caspase-3 and by inducing the IAP family of survival proteins (BIRC3, BIRC2, BIRC5 and XIAP) 4. Essential for maintaining a vascular smooth muscle cells (VSMCs) contractile/differentiated phenotype under physiological and pathological stimuli. Maintains this phenotype of VSMCs by interacting with ITGA7 (By similarity).... show less
Molecular function (UniProt)i

Keywords assigned by UniProt to proteins due to their particular molecular function.

Heparin-binding
Biological process (UniProt)i

Keywords assigned by UniProt to proteins because they are involved in a particular biological process.

Apoptosis, Cell adhesion
Ligand (UniProt)i

Keywords assigned by UniProt to proteins because they bind, are associated with, or whose activity is dependent of some molecule.

Calcium
Gene summary (Entrez)i

Useful information about the gene from Entrez

The protein encoded by this gene is a noncollagenous extracellular matrix (ECM) protein. It consists of five identical glycoprotein subunits, each with EGF-like and calcium-binding (thrombospondin-like) domains. Oligomerization results from formation of a five-stranded coiled coil and disulfides. Binding to other ECM proteins such as collagen appears to depend on divalent cations. Contraction or expansion of a 5 aa aspartate repeat and other mutations can cause pseudochondroplasia (PSACH) and multiple epiphyseal dysplasia (MED). [provided by RefSeq, Jul 2016]... show less
PROTEIN INFORMATIONi

The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.

The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.

The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.

The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.

Splice variant SwissProt TrEMBL Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
COMP-201
ENSP00000222271
ENST00000222271
P49747
[Direct mapping] Cartilage oligomeric matrix protein
Predicted secreted proteins
   Secreted proteins predicted by MDSEC
   SignalP predicted secreted proteins
   Phobius predicted secreted proteins
   SPOCTOPUS predicted secreted proteins
   deepTMHMM predicted secreted proteins
   DeepSig predicted secreted proteins
Plasma proteins
Disease related genes
Human disease related genes
   Congenital malformations
   Congenital malformations of the musculoskeletal system
   Nervous system diseases
   Other nervous and sensory system diseases
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0001501 [skeletal system development]
GO:0001503 [ossification]
GO:0002020 [protease binding]
GO:0002063 [chondrocyte development]
GO:0003416 [endochondral bone growth]
GO:0003417 [growth plate cartilage development]
GO:0005178 [integrin binding]
GO:0005201 [extracellular matrix structural constituent]
GO:0005509 [calcium ion binding]
GO:0005515 [protein binding]
GO:0005518 [collagen binding]
GO:0005576 [extracellular region]
GO:0005615 [extracellular space]
GO:0006915 [apoptotic process]
GO:0006986 [response to unfolded protein]
GO:0007155 [cell adhesion]
GO:0007596 [blood coagulation]
GO:0008201 [heparin binding]
GO:0009306 [protein secretion]
GO:0009887 [animal organ morphogenesis]
GO:0010259 [multicellular organism aging]
GO:0010468 [regulation of gene expression]
GO:0014829 [vascular associated smooth muscle contraction]
GO:0016485 [protein processing]
GO:0030199 [collagen fibril organization]
GO:0030282 [bone mineralization]
GO:0030500 [regulation of bone mineralization]
GO:0030509 [BMP signaling pathway]
GO:0031012 [extracellular matrix]
GO:0032991 [protein-containing complex]
GO:0035264 [multicellular organism growth]
GO:0035988 [chondrocyte proliferation]
GO:0035989 [tendon development]
GO:0036122 [BMP binding]
GO:0043066 [negative regulation of apoptotic process]
GO:0043394 [proteoglycan binding]
GO:0043395 [heparan sulfate proteoglycan binding]
GO:0043588 [skin development]
GO:0048844 [artery morphogenesis]
GO:0050881 [musculoskeletal movement]
GO:0050905 [neuromuscular process]
GO:0051216 [cartilage development]
GO:0051260 [protein homooligomerization]
GO:0055001 [muscle cell development]
GO:0060173 [limb development]
GO:0060349 [bone morphogenesis]
GO:0062023 [collagen-containing extracellular matrix]
GO:0070062 [extracellular exosome]
GO:0070527 [platelet aggregation]
GO:0097084 [vascular associated smooth muscle cell development]
GO:0098868 [bone growth]
GO:1900047 [negative regulation of hemostasis]
GO:1902732 [positive regulation of chondrocyte proliferation]
GO:1990079 [cartilage homeostasis]
Show all
757 aa
82.9 kDa
Yes 0
COMP-202
ENSP00000403792
ENST00000425807
P49747
[Direct mapping] Cartilage oligomeric matrix protein
Predicted secreted proteins
   Secreted proteins predicted by MDSEC
   SignalP predicted secreted proteins
   Phobius predicted secreted proteins
   SPOCTOPUS predicted secreted proteins
   deepTMHMM predicted secreted proteins
   DeepSig predicted secreted proteins
Plasma proteins
Disease related genes
Human disease related genes
   Congenital malformations
   Congenital malformations of the musculoskeletal system
   Nervous system diseases
   Other nervous and sensory system diseases
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0001501 [skeletal system development]
GO:0002020 [protease binding]
GO:0005201 [extracellular matrix structural constituent]
GO:0005509 [calcium ion binding]
GO:0005515 [protein binding]
GO:0005518 [collagen binding]
GO:0005576 [extracellular region]
GO:0005615 [extracellular space]
GO:0006915 [apoptotic process]
GO:0007155 [cell adhesion]
GO:0008201 [heparin binding]
GO:0009887 [animal organ morphogenesis]
GO:0031012 [extracellular matrix]
GO:0043066 [negative regulation of apoptotic process]
GO:0043394 [proteoglycan binding]
GO:0043395 [heparan sulfate proteoglycan binding]
GO:0051260 [protein homooligomerization]
GO:0060173 [limb development]
GO:0062023 [collagen-containing extracellular matrix]
GO:0070062 [extracellular exosome]
GO:1990079 [cartilage homeostasis]
Show all
704 aa
77.2 kDa
Yes 0
COMP-203
ENSP00000439156
ENST00000542601
G3XAP6
[Direct mapping] Cartilage oligomeric matrix protein; Cartilage oligomeric matrix protein, isoform CRA_b
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Human disease related genes
   Congenital malformations
   Congenital malformations of the musculoskeletal system
   Nervous system diseases
   Other nervous and sensory system diseases
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0005509 [calcium ion binding]
GO:0005576 [extracellular region]
GO:0007155 [cell adhesion]
GO:0008201 [heparin binding]
724 aa
79.7 kDa
No 0

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