Identification of Further Antigens on Red Cells and Lymphocytes

. Antigenic sites of Bgb and Bgc specificity are present on lymphocytes as well as on red cells. The Bgb group has been correlated with the W17 (Te57) white cell group, and the Bgc with the W28 (Da15, Ba*) antigen. Both haemagglutinating and cytotoxic antibodies can be absorbed by either red or white cells, though cross-reactivity was shown by many white cells. A haemagglutinin reacting with HL-A10 positive donors was found in some multispecific antisera. All these groups show weaker reactions with red cells than with lymphocytes.