Presence of a Mouse Embryonic Antigen on Human Spermatozoa

Abstract
A cell-surface antigen common to mouse primitive teratocarcinoma cells, morulae, and spermatozoa and specified by the +(t12) allele at the T-locus of the mouse has been shown by serological methods to be present on the surface of human spermatozoa, but not of human lymphocytes, fibroblasts, or erythrocytes.