Through its ability to bind extracellular matrix constituents and growth factors the small leucine-rich chondroitin/dermatan sulfate proteoglycan decorin which is present in many types of connective tissues may play an important biological role in remodeling and maintenance of extracellular matrices during inflammation, fibrosis, and cancer growth. In this study we investigated the known binding of decorin to human collagen XIV. This binding was unaffected when the small collagenous moiety of collagen XIV was removed with collagenase. Therefore, fragments covering the large noncollagenous domain NC3 of collagen XIV were expressed inEscherichia coli, each fused to a 26-kDa fragment of glutathione S-transferase. Using radioiodinated decorin as ligand for the immobilized fusion proteins, a binding site that interacted with the decorin core protein could be assigned to the NH2-terminal fibronectin type III repeat of collagen XIV. In addition, an auxiliary binding site located COOH-terminal to this fibronectin type III repeat interacted with the glycosaminoglycan component of decorin.
Localization of a Binding Site for the Proteoglycan Decorin on Collagen XIV (Undulin)*
T. Ehnis,W. Dieterich,M. Bauer,H. Kresse,D. Schuppan
Published 1997 in Journal of Biological Chemistry
ABSTRACT
PUBLICATION RECORD
- Publication year
1997
- Venue
Journal of Biological Chemistry
- Publication date
1997-08-15
- Fields of study
Biology, Medicine, Materials Science, Chemistry
- Identifiers
- External record
- Source metadata
Semantic Scholar, PubMed
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