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  • Title: Structural relationship of the SB beta-chain gene to HLA-D-region genes and murine I-region genes.
    Author: Long EO, Gorski J, Mach B.
    Journal: Nature; ; 310(5974):233-5. PubMed ID: 6431294.
    Abstract:
    The major histocompatibility complex (MHC) regulates several aspects of the immune response. Class II antigens of the MHC control cellular interactions between lymphocytes. In man, at least three class II antigens (DR, DC and SB), consisting of distinct alpha- and beta-chains, are encoded in the HLA complex. Sequence analysis has established that the DR and DC antigens are the respective structural counterparts of the murine I-E and I-A antigens. Molecular cloning of the SB beta-chain gene has now enabled us to define its relationship to other class II genes. The DR, DC and SB beta genes have diverged from each other to the same extent. In murine DNA and in cloned genes from the I region, the best hybridization of SB beta DNA is with the E beta 2 sequence. E beta 2 may belong to a complete gene (E' beta) because first domain sequences were found adjacent to it.
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