Reactions of rabbit antisera to human beta2-microglobulin (beta2-M) with platelets

Reactions of rabbit antisera to human beta2-M against human platelets and man-mouse hybrid cells were studied by MA tests and cytolysis tests. Evidence is presented that the beta2-M act as species-specific cell surface antigens, some of which are most likely shared by cell surface proteins determined by genes on chromosomes other than the chromosome 15.