The matrilins: a novel family of oligomeric extracellular matrix proteins.
The matrilin family at present has four members that all share a structure made up of von Willebrand factor A domains, epidermal growth factor-like domains and a coiled coil alpha-helical module. The first member of the family, matrilin-1 (previously called cartilage matrix protein or CMP), is expressed mainly in cartilage. Matrilin-3 has a similar tissue distribution, while matrilin-2 and -4 occur in a wide variety of extracellular matrices. Matrilin-1 is associated with cartilage proteoglycans as well as being a component of both collagen-dependent and collagen-independent fibrils and on the basis of the related structures other matrilins may play similar roles. The matrilin genes are strictly and differently regulated and their expression may serve as markers for cellular differentiation.[1]References
- The matrilins: a novel family of oligomeric extracellular matrix proteins. Deák, F., Wagener, R., Kiss, I., Paulsson, M. Matrix Biol. (1999) [Pubmed]
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