consequently , the chromosomal segment presently defined by recombination studies as the d region , must contain another locus , controlling the second polypeptide chain which is detectable by anti-h-2.28 antisera , besides the h-2d locus which controls the polypeptide chain bearing the private specificity h-2.4 as well as most of the public specificities .
C0008633
chromosomal
C1708726
locus