Abstract
Secretion ofp-nitrophenyl-β-xyloside-induced glycosaminoglycan chains in cultured fibroblasts is considered to involve transport through the endoplasmic reticulum and the Golgi apparatus. Purified glycosaminoglycans from fibroblast secretions contain small amounts of covalently bound [32P]phosphate. However, exhaustive digestion with chondroitin AC and ABC lyases yields an unphosphorylated linkage region tetrasaccharide in the majority of all polysaccharide chains. The phosphate label is associated predominantly with material of the expected behavior of linkage region hexasaccharides. Thus, phosphorylation is not a prerequisite to secretion of xyloside-induced glycosaminoglycan chains.
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Greve, H., Kresse, H. Secretion of unphosphorylated and phosphorylated xyloside-induced glycosaminoglycan chains. Glycoconjugate J 5, 175–183 (1988). https://doi.org/10.1007/BF01061206
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DOI: https://doi.org/10.1007/BF01061206