Some observations on the Inb antigen and evidence that anti-Inb causes accelerated destruction of radiolabeled red cells.

Abstract excerpt

This report describes an example of anti-Inb, a red cell alloantibody directed against a high-frequency antigen, detected in a prenatal sample obtained from a Canadian woman of Asian Indian extraction. Although the antibody is IgG1, it could not be detected in the serum or on the red cells (RBCs) of her In(b+) infant. Evidence is provided that the Inb antigen is denatured by papain, ficin, trypsin, bromelin,...

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