Intermolecular Cross-Linking of Collagen and the Identification of a New Beta-Component
- 5 June 1964
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 144 (3623), 1220-1221
- https://doi.org/10.1126/science.144.3623.1220
Abstract
Extraction of skin with 5M guanidine after salt and acid extraction yields a gelatin fraction which contains a greater proportion of double-chain (β) components than can be accounted for by intramolecular cross-linking of collagen molecules. This fraction also contains a new β-component, identified as the dimer of α2 and designated β22. This dimer must be formed by intermolecular crosslinking since each collagen molecule contains only one α2 chain. Thus, direct evidence is presented for the occurrence of both inter- and intramolecular crosslinking by what appears to be a single continuous process.Keywords
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