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. 1971 Nov;125(2):433–437. doi: 10.1042/bj1250433

Hydroxylysine in the N-terminal regions of the α1- and α2-chains of various collagens

M J Barnes 1, B J Constable 1, L F Morton 1, E Kodicek 1
PMCID: PMC1178077  PMID: 5144746

Abstract

The degree of hydroxylation of the lysine residue located in both α1- and α2-chains of collagen in the N-terminal, non-helical telopeptide region of the molecule has been determined in collagen from various sources after isolation of the peptides (α1- and α2-CB1) that contain the lysine residue in question and are obtained by cyanogen bromide cleavage of collagen α1- and α2-chains respectively. As with collagen from chick tibia, bone collagens from rat tibia and femur and embryonic chick frontal bone, have a high degree of hydroxylation (approx. 50% or more) of the lysine residue in both α1- and α2-CB1 peptides. This is in contrast with the lack of hydroxylation of this residue in both α1- and α2-chains of all skin collagens so far examined. The presence of hydroxylysine in α1- and α2-CB1 peptides from tendon collagen is also indicated. In rat tail tendon collagen the amount of hydroxylation is only slight but in the much less soluble tendon collagen from embryonic chick leg tendons, approximately one-third of the lysine is hydroxylated.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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