Characterization of the oligosaccharide units of the fourth component of complement (Ss protein) synthesized by murine macrophages
Roos, M.H.; Kornfeld, S.; Shreffler, D.C.
Journal of Immunology 124(6): 2860-2863
1980
ISSN/ISBN: 0022-1767 PMID: 7373053 Document Number: 159564
The glycosylation of murine C4 (Ss protein) synthesized by peritoneal macrophages has been investigated. Both the intracellular precursor, P-C4 (185), and the C4 alpha- and beta-chains that were secreted into medium were found to be glycosylated; however, no carbohydrate units were detected on the gamma-chain. Analyses of the oligosaccharide units showed that P-C4 (185) appears to contain both a "complex" and a "high mannose" carbohydrate group, the alpha-chain a "complex" group and the beta-chain a "high mannose" carbohydrate unit.