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HLA-DR51

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HLA-DR51

HLA-DR51 is a HLA-DR serotype that recognizes the antigens encoded by the minor DR locus HLA-DRB5.

DRB3, DRB4, and DRB5 are minor DR beta encoding loci, they have been recognized as having distinct evolution, having diverged from DRB1 approximately 4 million years ago.

DRB5 locus is only apparent in a small subset of DR haplotypes, and most individuals lack DRB5.

DRB5* is subdivided into two allele groups, DRB5*01 and DRB5*02. B5*01 encodes 14 alleles and 11 isoforms. B5*02 encoded 4 alleles that can generate 4 isoforms. Only 3 of these have been surveyed by serotyping. There are numerous null genes at this locus.

DRB5*01 allele group

DRB5*02 allele group

DR51 serotype is positively associated with The following HLA-DRB5 alleles are associated with disease:

DRB5*0101:DRB1*1501 Multiple sclerosis, leprosy

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