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Eur J Biochem. 1983 Jun 1;133(1):39-46.

Further characterization of the three polypeptide chains of bovine and human short-chain collagen (intima collagen).

Abstract

Short-chain collagen was isolated from bovine and from human placenta after limited pepsin digestion. By reductive cleavage of disulfide bonds under non-denaturing conditions, mainly non-collagenous domains were cleaved off yielding a uniform component composed of three polypeptide chains with molecular masses between 37 kDa and 48 kDa in a nearly equimolar ratio. The chains (SC1*, SC2* and SC3*) were isolated and characterized. By comparison of peptide patterns obtained after various cleavage procedures, they could be identified as more or less shortened forms of SC1, SC2 and SC3, the isolation of which from bovine short-chain collagen has been described [Jander et al. (1981) Eur. J. Biochem. 114, 17-25]. The peptide patterns; as well as N-terminal sequence determination, give evidence for the genetic individuality of the three chains; the data so far available suggest that together they form one triple-helical structure which represents the collagenous domain of the basic molecular unit of short-chain collagen.

PMID:
6852033
[PubMed - indexed for MEDLINE]
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