title: Genetics of HLA-B27.
abstract: The various subtypes of HLA-B27 are described together with their worldwide distribution. None is uniquely related to AS but the evidence favours a direct role for B27 in the disease pathogenesis.
authors: M A
authors: MA
authors: Khan
mesh_terms: D000483:Alleles; D015478:Antigens, Heterophile / Q000235:genetics; D000939:Epitopes / Q000235:genetics; D008040:Genetic Linkage; D014644:Genetic Variation; D006680:HLA Antigens / Q000235:genetics*; D015796:HLA-B27 Antigen; D006801:Humans; D044469:Racial Groups; D013167:Spondylitis, Ankylosing / Q000235:genetics / Q000276:immunology*
chemical_list: D015478:Antigens, Heterophile; D000939:Epitopes; D006680:HLA Antigens; D015796:HLA-B27 Antigen