Pulsed field gel electrophoretic analysis of the rat major histocompatibility complex class III region shows extensive inter-species conservation |
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| Authors: | T. Lund C. Carter R. D. Campbell |
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| Affiliation: | (1) The Medical Molecular Biology Unit, Department of Immunology and Molecular Pathology, University College London Medical School, 40-50 Tottenham Street, W1P 9PG London, UK;(2) Division of Cell and Molecular Biology, Institute of Child Health, London, UK;(3) Medical Research Council Immunochemistry Unit, Department of Biochemistry, Oxford University, Oxford, UK |
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| Abstract: | Using pulsed field gel electrophoresis (PFGE), we have examined the rat major histocompatibility complex (MHC) for the presence of a number of new class III region genes recently identified in the human MHC. We find homologous genes to the human G1, G2, G4, G7a, G9, G9a, G10, G13, G15, and G18 genes, but not the G8 gene in the rat genome, and show that these are linked to the rat TNF- and C4/Slp loci. A long-range restriction map has been constructed on the basis of a PFGE analysis which demonstrates extensive co-linearity in the positions of the homologous sequences in the region between the C4/Slp and TNF loci in the rat MHC when compared with that of the human MHC class III region.Deceased. |
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