human major histocompatibility complex, class II, DR9
Haplotypes groupsDQA*01:DRB1*0901 to DQA*01:DRB1*0906
Structure (See HLA-DR)
Identifiersalpha *0101
Symbol(s)[permanent dead link]
EBI-HLA
Identifiersbeta 1 *0901
Symbol(s)[permanent dead link]
EBI-HLA2011-05-15 at the Wayback Machine
Shared data
Locuschr.6

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

Serology

DR9 recognition of some DRB1*0901 alleles
DRB1*DR9Sample
allele%%%size (N)
0901951058

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

DR09 Haplotypes
DRADRB1
Haplotypes*0101*0901*0101
DQA1DQB1DRB1
Haplotypes*0301*0303*0901
HLA-AHLA-BDRB1
Haplotypes*0000*0000*0901

HLA-DR9 is genetically linked to HLA-DR53, and HLA-DQ3 and DQ9 serotypes.