Complete sequence of an HLA‐dR beta chain deduced from a cDNA clone and identification of multiple non‐allelic DR beta chain genes

At least three polymorphic class II antigens are encoded in the human major histocompatibility complex (HLA): DR, DC and SB. cDNA clones encoding beta chains of HLA‐DR antigen, derived from mRNA of a heterozygous B‐cell line, were isolated and could be divided into four subsets, clearly distinct fro...

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