HLA-DPB1 typing with polymerase chain reaction and restriction fragment length polymorphism technique in Danes
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We have used the polymerase chain reaction (PCR) in combination with the restriction fragment length polymorphism (RFLP) technique for HLA-DBP1 typing. After PCR amplification of the polymorphic second exon of the HLA-DPB1 locus, the PCR product was digested with seven allele-specific restriction endonucleases: RsaI, FokI, ApaI, SacI, BstUI, EcoNI, and DdeI, and the DNA fragments were separated by electrophoresis in agarose gels. Altogether, 71 individuals were investigated and 16 different HLA-DPB1 types were observed in 26 different heterozygotic combinations, as well as five possible homozygotes. Four heterozygotes could not be unequivocally typed with the PCR-RFLP method. The HLA-DPB1 typing results obtained with the PCR-RFLP method were compared with the typing results obtained with PCR allele-specific oligonucleotides (PCR-ASO) in 50 individuals. The results obtained with the two methods were concordant in 84% of the cases. One of the HLA-DPB1 types was discrepant in six heterozygotes, both HLA-DPB1 types were discrepant in one heterozygote, and in one individual two HLA-DPB1 types were identified with the PCR-RFLP technique while only one HLA-DPB1 type could be demonstrated with the PCR-ASO technique. The frequencies of the HLA-DPB1 genotypes deduced from the results of PCR-RFLP typing were estimated in 71 healthy Danes.
Original language | English |
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Journal | HLA |
Volume | 40 |
Issue number | 3 |
Pages (from-to) | 140-144 |
Number of pages | 4 |
ISSN | 2059-2302 |
Publication status | Published - 1992 |
Bibliographical note
Keywords: Adult; Algorithms; Base Sequence; Denmark; Exons; Genes, MHC Class II; HLA-DP Antigens; Histocompatibility Testing; Humans; Molecular Sequence Data; Polymerase Chain Reaction; Polymorphism, Restriction Fragment Length
ID: 16186348