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  • Title: HLA-Dw clusters associated with DR4 in Israeli Jews and the definition of a new DR4 associated Dw subtype: Dw"SHA".
    Author: Cohen N, Mickelson E, Amar A, Battat S, Hansen JA, Brautbar C.
    Journal: Hum Immunol; 1987 Jul; 19(3):179-88. PubMed ID: 3497909.
    Abstract:
    A homozygous typing cell (HTC), that identifies a newly defined HLA-Dw determinant Dw"SHA," is described. The donor of the HTC was a Yeminite Jew and an offspring of first cousin marriage. This cell is not included in the known DR4-associated specificity clusters Dw4,Dw10,Dw13,Dw14,Dw15, or the provisional cluster Dw"KT2." Dw"SHA" was shown to segregate with DR4 positive haplotypes in family analysis, and in a population study was present in three of 43 unrelated DR4 positive individuals. This new Dw determinant was detected in Israeli Jews of Yemenite origin bearing the haplotype HLA-Bw41,DR4,DQw3. This indicates that Bw41,DR4,DQw3,Dw"SHA" may represent a typical allele combination in Yemenite Jews. Among 43 DR4 haplotypes in Israeli Jews, Dw10 had the highest antigen frequency (41.8%), whereas in American Caucasoids and in Japanese, Dw4 and Dw15 were most frequent, 44% and 40.5%, respectively.
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