Identification of specificity H-2.7 as an erythrocyte antigen: Control by an independent locus, H-2G , between the S and D regions

Abstract

Specificity H-2.7 is expressed predominantly on erythrocytes and controlled by a gene that maps within the H-2 gene complex at a locus, designated as H-2G , which apparently lies between regions S and D . Three phenotypes have been observed with respect to this antigen: a) positive by direct test and absorption (haplotypes H-2 f , H-2 j , H-2 p , H-2 s ); b) positive only by absorption ( H-2 k ); and c) negative ( H-2 b , H-2 d , H-2 q ). New crossover positions have been established for several H-2 recombinants based on classifications for the H-2G locus.