New diallelic markers in the HLA region of chromosome 6.
Diallelic polymorphisms have been identified in the HLA-H gene and the ZNF192 gene located about 2 megabases centromeric to HLA-H. The three polymorphic sites in HLA-H together with the two hemochromatosis mutations in this gene give rise to 8 different haplotypes. The three polymorphic sites in ZNF192 give rise to 4 different haplotypes. The haplotypes in HLA-H are in complete linkage disequilibrium with the two common mutations in that gene, 845A (C282Y) and 187G (H63D). The 845A mutation is in weak linkage disequilibrium with the ZNF192 polymorphisms and the 187G mutation appears to be in equilibrium with this polymorphism. The 187G mutation therefore appears to be the older of the two HLA-H mutations.
Beutler
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The Scripps Research Institute, Department of Molecular and Experimental Medicine, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA. beutler@scripps.edu
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D000483:Alleles; D044466:Asian People / Q000235:genetics; D002503:Centromere; D002874:Chromosome Mapping; D002896:Chromosomes, Human, Pair 6; D004268:DNA-Binding Proteins / Q000235:genetics*; D005819:Genetic Markers; D006680:HLA Antigens / Q000235:genetics*; D006432:Hemochromatosis / Q000235:genetics* / Q000276:immunology; D000071020:Hemochromatosis Protein; D015395:Histocompatibility Antigens Class I / Q000235:genetics*; D006801:Humans; D015810:Linkage Disequilibrium; D008565:Membrane Proteins; D018895:Microsatellite Repeats; D017354:Point Mutation; D011110:Polymorphism, Genetic; D012016:Reference Values; D015183:Restriction Mapping; D044465:White People / Q000235:genetics; D016335:Zinc Fingers
D004268:DNA-Binding Proteins; D005819:Genetic Markers; C103673:HFE protein, human; D006680:HLA Antigens; D000071020:Hemochromatosis Protein; D015395:Histocompatibility Antigens Class I; D008565:Membrane Proteins; C108013:ZKSCAN8 protein, human