HLA-A19

HLA-A19 is a human leukocyte antigen Human [leukocyte antigen|HLA]-A serotype that may recognize the A29, A30, A31, A32, A33, and A74 serotypes. While these haplotypes are found all over the globe, their combined frequencies are higher in Sub Saharan Africa; frequencies tend to decline away from Africa.

Clinical significance

HLA-A19 has been implicated in a number of diseases, including renal cell carcinoma, Kaposi's sarcoma, vitiligo, and others; antibodies to HLA-A19 were recorded in 86% of infertile men and 92% of infertile women.