Abstract
Mutant mouse strains are important tools for immunogenetic studies of the regulation, structure and function of major histocompatibility (H–2) antigens1–2 Several inbred strains have been established which carry H–2-linked mutations that cause changes in cell surface antigens as recognized by cytotoxic T cells and sometimes antibodies. Using intra-H–2 recombinant haplotypes in skin graft complementation studies, lesions in several of these mutant strains have been genetically mapped to genes encoded in the K- or D-end of the H–2 complex3. More precise mapping has often not been possible as many of the available mutant strains possessed lesions in the K-end of the H–2b haplotype and a recombinant separating the Kb and I–Ab regions was not previously available. The genetic locations of the lesions in some of these mutant strains could therefore only be inferred when a serological and/or structural alteration was detected (see refs 1, 2). We describe here the use of a newly established recombinant strain, B10.MBR (ref. 4), for skin graft complementation studies to map K-end mutations. These studies provide the first genetic evidence that the B6.C-H-2bm12 mutation involves an I–Ab gene and also confirm that the lesions in two other mutants can be mapped to a gene in the Kb region.
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Hansen, T., Melvold, R., Arn, J. et al. Evidence for mutation in an I–A gene. Nature 285, 340–341 (1980). https://doi.org/10.1038/285340a0
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DOI: https://doi.org/10.1038/285340a0
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