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B. Wilhelm, C. Keppler, A. Henkeler, M. Schilli-Westermann, D. Linder, G. Aumüller, J. Seitz

Identification and Characterization of an IgG Binding Protein in the Secretion of the Rat Coagulating Gland

A merocrine released protein (named 115k protein) was highly enriched from the secretion of the rat coagulating gland. The protein has a molecular mass of 115 kDa as calculated by SDSPAGE under reducing conditions. Furthermore, the 115 kDa protein is glycosylated, and carries Man, GlcNAc, Gal, Fuc and sialic acid residues. For identification, Nterminal amino acid and nucleotide sequence analyses were performed. The sequences obtained showed 86 to 100% identity with human and mouse IgGFc binding proteins. The functional capacity of IgG binding of the 115 kDa protein was shown by overlay experiments, indicating its membership in the IgG binding protein family.

Biological Chemistry, Walter de Gruyter

Print ISSN: 1431-6730
Volume: 383, 12/2002
Pages: 1959 - 1965

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