Human fibrinogen gel formed by the action of a cell surface polysaccharide obtained from a Staphylococcus.
An alkali-stable polysaccharide (called compact-colony forming active substance; substance 1) obtained from the cell surface of a strain of Staphylococcus epidermidis caused gel formation of human fibrinogen, with no release of fibrinopeptides. Substance 1 possessed neither esterase nor caseinolytic activities; no inhibition of gel formation was shown by dinitrofluorophosphate. Heparin and galactose prevented gel formation of fibrinogen with substance 1. With the addition of early- and late-fibrinogen or fibrin degradation products into the fibrinogen sample, no prolongation of the gel formation time was observed. This substance is, therefore, assumed to nonenzymatically induce gel formation with fibrinogen, a process resembling paracoagulation.
D005340:Fibrinogen / Q000502:physiology*; D005782:Gels; D006801:Humans; D007700:Kinetics; D010446:Peptide Fragments / Q000032:analysis; D011135:Polysaccharides, Bacterial / Q000494:pharmacology*; D013210:Staphylococcus / Q000276:immunology*
D005782:Gels; D010446:Peptide Fragments; D011135:Polysaccharides, Bacterial; D005340:Fibrinogen