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major histocompatibility complex (human), class I, B*83
Alleles B*8301
Structure (See HLA-B)
Symbol(s) HLA-B
EBI-HLA B*8301
Locus chr.6 6p21.31

HLA-B*83 (B83) is an HLA-B allele-group composed of a single allele, B*8301. There is no useful serology associated with this allele.[1] It is found in a single Mbenzele Pygmy tribe of the Central Africa Republic at 1.5%.[2] B*8301 appears to be the result of the replacement of exon 2 from B*4402 with exon 2 from B*5603.[3]

Location of Central African Republic
Location of Africa's Pygmy Tribes


  1. Marsh SG, Albert ED, Bodmer WF; et al. (2005). "Nomenclature for factors of the HLA system, 2004". Tissue Antigens. 65 (4): 301–69. doi:10.1111/j.1399-0039.2005.00379.x. PMID 15787720.
  2. Bruges Armas J, Destro-Bisol G, López-Vazquez A; et al. (2003). "Pygmies". Tissue Antigens. 62 (3): 233–42. PMID 12956877.
  3. Steiner NK, Gans CP, Kosman C; et al. (2001). "New alleles in the B44 family including B*44022, B*44032, B*4411, B*4420, B*4421, B*4424, and B*8301". Tissue Antigens. 57 (4): 376–9. PMID 11380952.