Relative HLA-DRB1*04 allele frequencies in five United States populations found in a hematopoietic stem cell volunteer donor registry and seven new DRB1*04 alleles.
The frequencies of 29 HLA-DRB1*04 alleles were determined for five major U.S. populations found within a hematopoietic stem cell volunteer donor registry. One hundred sixty-one DRB1*04 positive individuals from each of the self-described groups, Caucasians, African-Americans, Asian/Pacific Islanders, Hispanics, and Native Americans, were randomly chosen from a database of 82,979 unrelated persons. Subjected to polymerase chain reaction-sequence-specific oligonucleotide probe (PCR-SSOP) typing, these 805 individuals carried a total of ten different DRB1*04 alleles, ranging from DRB1*0401 to DRB1*0411 with DRB1*0409 conspicuously absent from all five groups. The distribution of DRB1*04 alleles varied among the groups, with DRB1*0401 being predominant in Caucasians, African-Americans, and Native Americans. DRB1*0404 and DRB1*0407 were the two most commonly observed alleles in Hispanics, whereas DRB1*0405 and DRB1*04031 were most common in Asian/Pacific Islanders. The remaining 18 DRB1*04 alleles known at the time of the study were not observed. Although not observed in the frequency study, seven previously unreported DRB1*04 alleles are also described.
Chen
Deborah S
DS
Department of Pediatrics, Washington, DC 20007, USA
Tang
Ting F
TF
Pulyaeva
Helena
H
Slack
Rebecca
R
Tu
Bin
B
Wagage
Devika
D
Li
L i
Li
Perlee
Lorah
L
Ng
Jennifer
J
Hartzman
Robert J
RJ
Katovich Hurley
Carolyn
C
D000483:Alleles; D001213:Asian / Q000235:genetics; D044383:Black People / Q000235:genetics; D005787:Gene Frequency; D006684:HLA-DR Antigens / Q000235:genetics*; D059811:HLA-DRB1 Chains; D006412:Hematopoietic Stem Cells; D006630:Hispanic or Latino / Q000235:genetics; D006801:Humans; D007198:Indians, North American / Q000235:genetics; D012042:Registries; D014019:Tissue Donors; D014481:United States; D044465:White People / Q000235:genetics; D001741:Black or African American
D006684:HLA-DR Antigens; D059811:HLA-DRB1 Chains; C553505:HLA-DRB1*04:01 antigen