Antigen Report: HLA-A24
HLA-A24 was first identified as a split of A9 by Dausset in 1970 . It was confirmed by the data analyzed at the 1972 Histocompatibility Workshop held in Evian . At the last three workshops, A24 has been well defined with sera giving high correlation coefficients [3, 5, 6]. In addition, there was a good agreement between laboratories on the definition of this antigen in cell exchange . A24 has the highest frequency in Orientals and the lowest in Negroids. In Caucasians, A24-Bw61-DR2 showed significant positive linkage disequilibrium, and in Orientals, A24-B7-DR2 showed strong negative linkage disequilibrium .
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