DNA typing of the HLA-A gene: Population study and identification of four new alleles in Japanese

Y. Date, A. Kimura, H. Kato, T. Sasazuki

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117 Citations (Scopus)

Abstract

With the use of polymerase chain reaction (PCR) and sequence-specific oligonucleotide probe (SSOP), we established a DNA typing method of the HLA-A locus. A pair of primers to amplify the highly polymorphic region of HLA-A gene including exon 2 and exon 3 was designed and the amplified DNAs were hybridized with 91 types of 32P labeled SSOPs. This method allowed discrimination of all known HLA-A alleles except for two combinations, A(*)0201 or A(*)0209 and A(*)0207 or A(*)0215N, which have identical sequences in exon 2 and exon 3. Another pair of primers was designed for amplification of exon 4 and the PCR products were hybridized with 5 SSOPs to distinguish A(*)0201 and A(*)0207 from A(*)0209 and A(*)0215N, respectively. In this study, 81 B-lymphoblastoid cell lines (BLCL) homozygous for HLA and 553 unrelated healthy Japanese individuals were determined for their HLA-A genotypes. Based on the genotyping results, frequency of HLA-A alleles and linkage disequilibrium between HLA-A and HLA-B in the Japanese population were investigated. In addition, four new HLA-A alleles were identified and their nucleotide sequences in exon 2 and exon 3 were determined to confirm the typing results.

Original languageEnglish
Pages (from-to)93-101
Number of pages9
JournalTissue antigens
Volume47
Issue number2
DOIs
Publication statusPublished - 1996
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Immunology and Allergy
  • Immunology
  • Biochemistry
  • Genetics

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