Author:
Paulsson M,Dziadek M,Suchanek C,Huttner W B,Timpl R
Abstract
Seven different sulphated macromolecules were detected in 6 M-guanidinium chloride extracts of metabolically [35S]sulphate-labelled mouse Reichert's membrane and were partially separated. Polypeptide bands of apparent Mr 50 000, 150 000 (tentatively identified as entactin) and 170 000 contained essentially tyrosine O-sulphate as the labelled component. Most of the radioactive sulphate was incorporated into three different proteoglycans, which could be separated by chromatography and density-gradient centrifugation before and after enzymic degradation. Enzymic analysis of glycosaminoglycans and of protein cores by immunoassays identified these components as low-density and high-density forms of heparan sulphate proteoglycan and a high-density form of chondroitin sulphate or dermatan sulphate proteoglycan.
Subject
Cell Biology,Molecular Biology,Biochemistry
Cited by
73 articles.
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