BLOOD GROUP ANTIGENS ON HUMAN SPERMATOZOA

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.