Dictionary of Human Evolution and Biology

Dictionary of Human Evolution and Biology

B Antigen

Epitope that specifies the B in the ABO blood group. It consists of four precursor sugars attached to glycoproteins of the cell membrane, aka H substance, plus a specific fifth terminal sugar, galactose, that is attached by an enzyme. This enzyme differs from its homologue that attaches the A-specific sugar by one amino acid substitution.

See A antigen and O null allele.

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antigen binding site (... of the antibody. Aka antigen combining site.)
antigen processing (... antigen; this combination signals the ...)
cell-surface antigen (Heritable factor that is used for identification, such as a blood group antigen or a ...)
cluster-of-differentiation antigen (Any self-antigen capable of recognizing foreign antigens carried on macrophages, and that sends ...)
H-Y antigen (Any of several minor histocompatibility epitopes (or inducers) that map to HSA Yq; candidate ...)