High-resolution sequence-based DPA1 typing identified two novel DPA1 alleles, DPA1*010303 and DPA1*0303, from a Kenyan population

Tissue Antigens. 2005 Jan;65(1):120-2. doi: 10.1111/j.1399-0039.2005.00339.x.

Abstract

We report here two novel DPA1 alleles, DPA1*010303 and DPA1*0303, identified from a Kenyan population during sequence-based HLA-DPA1 typing. Molecular cloning and sequencing of multiple clones confirmed that one of the new DPA1 alleles is identical to DPA1*010301 at exon 2, except for a single nucleotide substitution (ACG ACC) at codon 15. The new allele has been named by the WHO Nomenclature Committee as DPA1*010303. The second novel DPA1 allele is identical to DPA1*0301, except for a single nucleotide difference (GAA GAC) at codon 28 that changed the amino acid from Glu to Asp. The new allele has been named by the WHO Nomenclature Committee as DPA1*0303. Identification of the two novel DPA1 alleles reflects the genetic diversity of this East African population.

Publication types

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

MeSH terms

  • Base Sequence
  • HLA-DP Antigens / genetics*
  • HLA-DP Antigens / immunology
  • HLA-DP alpha-Chains
  • Humans
  • Kenya
  • Molecular Sequence Data
  • Sequence Alignment

Substances

  • HLA-DP Antigens
  • HLA-DP alpha-Chains
  • HLA-DPA1 antigen