Galactosidase Action on Human Blood Group B Active Escherichia coli and Ox Red Cell Substances

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Science  13 Nov 1964:
Vol. 146, Issue 3646, pp. 946-947
DOI: 10.1126/science.146.3646.946


The blood group B specificity of Escherichia coli O86 antigen, a B specific oligosaccharide fraction from it, and the B activity of a preparation of an "infectious mononucleosis receptor" from cattle erythrocytes are destroyed by α-galactosidase from the coffee bean, as demonstrated for the E. coli antigen by three methods. Blood group H(O) activity appears simultaneously. Galactose is the only hexose released from all three substances.