The presence in human plasma of a molecule homologous to bovine congtutinin is indicated by the results of biological and immunochemical analysis. The human conglutinin-like protein shows calcium-dependent binding to complement-treated solid phase IgG and immunological cross-reaction with chicken anti-bovine conglutinin. The binding of the human protein to complement-treated IgG was inhibited by N-acetyl-D-glucosamine but not by other sugars. Analysis by SDS-PAGE and Western blotting showed reaction of anticonglutinin with molecules of similar mobility to the monomer and hexamer of bovine conglutinin.
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© 1985 The Biochemical Society
1985
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