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Science 13 November 1964:
Vol. 146. no. 3646, pp. 946 - 947
DOI: 10.1126/science.146.3646.946
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Articles

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

Georg F. Springer 1, James H. Nichols 1, and Hugh J. Callahan 1

1 Department of Immunochemistry Research, Evanston Hospital Association, and Department of Microbiology, Northwestern University, Evanston, Illinois

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 agr-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.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)