DRw8 microvariation: a new DRB1 allele identified in association with DQw7 in American blacks

Hum Immunol. 1991 Jun;31(2):109-13. doi: 10.1016/0198-8859(91)90013-y.

Abstract

In the American black population, DRw8 is commonly found in association with DQw7 and an undefined HLA-D specificity. Polymerase chain reaction amplification was used to obtain DRB1 cDNA clones from two unrelated individuals expressing this haplotype. The DRB1 sequence is most similar to a sequence found in cells expressing DRw8, DQw4, Dw8.2 differing at the protein level by a single amino acid substitution at position 86.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Alleles
  • Amino Acid Sequence
  • Base Sequence
  • Black People / genetics*
  • Black or African American
  • DNA / analysis
  • Genetic Variation / genetics*
  • HLA-DQ Antigens / genetics*
  • HLA-DR Antigens / genetics*
  • HLA-DR Serological Subtypes
  • HLA-DRB1 Chains
  • Haplotypes
  • Histocompatibility Antigens Class II / genetics*
  • Humans
  • Lymphocyte Culture Test, Mixed
  • Molecular Sequence Data
  • Oligonucleotide Probes
  • Polymerase Chain Reaction
  • United States

Substances

  • HLA-DQ Antigens
  • HLA-DQ7 antigen
  • HLA-DR Antigens
  • HLA-DR Serological Subtypes
  • HLA-DR8 antigen
  • HLA-DRB1 Chains
  • Histocompatibility Antigens Class II
  • Oligonucleotide Probes
  • DNA