Identification of novel human leukocyte antigen G alleles in an East African population by high-resolution sequence-based typing

Hum Immunol. 2008 Jul;69(7):426-9. doi: 10.1016/j.humimm.2008.05.007. Epub 2008 Jun 23.

Abstract

We report two novel human leukocyte antigen G (HLA-G) alleles identified in an East African population during sequence-based typing of HLA-G. The novel alleles were confirmed by sequencing multiple polymerase chain reaction products and molecular cloning and subsequent sequencing of multiple clones. The sequence of HLA-G*0110 (EU290672) is identical to G*01010101/01010102/01010103/01010104/01010105 at exons 2, 3, and 4 except for a single nucleotide difference at codon 31 (ACG --> ATG), resulting in a coding change from threonine to methionine. The sequence of HLA-G*0111 (EU290673) is identical to G*010404 at exons 2, 3, and 4 except for a single nucleotide difference at codon 31 (ACG --> ATG), resulting in a coding change from threonine to methionine. These new alleles are detected in several other individuals in our study population and the functional relevance of these new alleles must be studied.

MeSH terms

  • Africa, Eastern
  • Alleles*
  • Amino Acid Sequence
  • Amino Acid Substitution
  • Base Sequence
  • Black People*
  • Exons
  • HLA Antigens / genetics*
  • HLA-G Antigens
  • Histocompatibility Antigens Class I / genetics*
  • Humans
  • Molecular Sequence Data
  • Polymerase Chain Reaction
  • Polymorphism, Single Nucleotide
  • Sequence Alignment
  • Sequence Analysis, DNA

Substances

  • HLA Antigens
  • HLA-G Antigens
  • Histocompatibility Antigens Class I