BLOOD GROUP ANTIGENS ON HUMAN SPERMATOZOA

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Abstract
Antigens on the membrane of human spermatozoa have been investigated using the mixed agglutination and mixed antiglobulin reactions. The spermatozoal membrane was shown to possess "species-specific" antigens in common with red cells which probably correspond to antigens on other tissue cells of the body. The A and B blood group iso-antigens have been shown on the spermatozoa of secretors but not on the spermatozoa of non-secretors. The presence of the iso-antigens M, N and Tja was established; however, the sex-linked antigen Xga could not be shown on the spermatozoa.