COMP binds Integrin alpha5beta1, Integrin alphaVbeta3, CD47

Stable Identifier
Reaction [binding]
Homo sapiens
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Cartilage oligomeric matrix protein (COMP, thrombospondin-5) is a 524-kDa pentameric glycoprotein expressed primarily in cartilage, tendon, ligament and synovium. In adult cartilage, COMP has been shown to be located primarily in the inter-territorial matrix between chondrocytes (Murphy et al. 1999). The mature protein is pentameric with each monomer linked to its neighbour by a disulphide bond, located at the amino terminus of the protein (Hedbom et al. 1992, Morgelin et al. 1992).

COMP binds integrin alpha5beta1 (Chen et al. 2005), integrin alphaVbeta3 (Neidhart et al.2005) and CD47 (also known as integrin-associated peptide or IAP, Rock et al. 2010) on the cell surface of chondrocytes and fibroblasts.

Literature References
PubMed ID Title Journal Year
20033473 Cartilage oligomeric matrix protein promotes cell attachment via two independent mechanisms involving CD47 and alphaVbeta3 integrin

Rock, MJ, Cohn, DH, Horton, WA, Holden, P

Mol. Cell. Biochem. 2010
15345499 Galectin-3 is induced in rheumatoid arthritis synovial fibroblasts after adhesion to cartilage oligomeric matrix protein

Michel, BA, Zaucke, F, J√ľngel, A, Gay, S, Gay, RE, Neidhart, M, von Knoch, R

Ann. Rheum. Dis. 2005
16051604 Cartilage oligomeric matrix protein/thrombospondin 5 supports chondrocyte attachment through interaction with integrins

Hecht, JT, Chen, FH, Goldring, MB, Thomas, AO, Lawler, J

J. Biol. Chem. 2005
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