HLA-DR09 (DR9) is a HLA- DR serotype that recognizes the DRB1*0901 gene product.

Serology

The serological reaction of DR9 is relatively good. The serology of DRB1*0902 to *0906 serotypes is unknown.

Disease associations

DRB1*0901: Early childhood myasthenia gravis

Extended linkage

DRB1*0901:DQA1*0301:DQB1*0303 haplotype: Early childhood myastenia gravis

Genetic linkage

HLA-DR9 is genetically linked to

HLA-DR53 HLA-DR53 is an HLA-DR serotype that recognizes gene products of HLA-DRB4 locus. There are 13 alleles at this locus that encode 7 proteins. DRB3, DRB4, and DRB5 are minor DR beta encoding loci, they have been recognized as having distinct evolution ...

, and

HLA-DQ3 Within molecular and cell biology, HLA-DQ3 (DQ3) is a broad serotype category with split antigens HLA-DQ7, DQ8, and DQ9. Historically, originally recognized as MB3 a DC4 serotype, DQw3 was one of three early determined antigens recognized as HLA ...

and DQ9 serotypes.

References

{{DEFAULTSORT:Hla-Dr9 9