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- *************************************
- * Glycosaminoglycan attachment site *
- *************************************
-
- Proteoglycans [1] are complex glycoconjugates containing a core protein to
- which a variable number of glycosaminoglycan chains (such as heparin sulfate,
- chondroitin sulfate, etc.) are covalently attached. The glycosaminoglycans are
- attached to the core proteins through a xyloside residue which is in turn
- linked to a serine residue of the protein. A consensus sequence for the
- attachment site seems to exist [2]. However, it must be noted that this
- consensus is only based on the sequence of three proteoglycan core proteins.
-
- -Consensus pattern: S-G-x-G
- [S is the attachment site]
- Additional rule: There must be at least two acidic amino acids from -2 to -4
- relative to the serine.
- -Last update: June 1988 / First entry.
-
- [ 1] Hassel J.R., Kimura J.H., Hascall V.C.
- Annu. Rev. Biochem. 55:539-567(1986).
- [ 2] Bourdon M.A., Krusius T., Campbell S., Schwarz N.B.
- Proc. Natl. Acad. Sci. U.S.A. 84:3194-3198(1987).
-