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Isolation and Structure of the Amino-Terminal Cross-linking Region in Insoluble Type III Collagen by Udo BECKER; Peter P. FIETZEK; Hans NOWACK; Rupert TIMPL is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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A collagenous peptide T1X was isolated from a tryptic digest of the insoluble matrix of calf skin. The peptide consists of two identical polypeptide chains each with a length of 72 amino acid residues joined by a cross-link. Absorption spectra obtained from hydrazone and azine derivatives of T1X indicated that the peptide contains an aldol-type of cross-link (X). The sequence of 23 amino acid residues in the amino-terminal region was determined as Glx-Tyr-Glu-Ala-Tyr-Asp-Val-X-Ser-Gly-Val-Ala-Gly-Gly-Gly-Ile-Ala-Gly-Tyr-Hyp-Gly-Pro-Ala. This sequence overlaps the previously described amino-terminal sequence of alpha1 (III) chain obtained from pepsin treated, insoluble type III collagen. Thus, the present data demonstrate a nonhelical segment of 14 amino acid residues in type III collagen important for cross-linking.

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Author

Udo BECKER; Peter P. FIETZEK; Hans NOWACK; Rupert TIMPL

Publisher

Walter de Gruyter GmbH

Published

1976

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)