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KMID : 0380219990320060529
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Journal of Biochemistry and Molecular Biology
1999 Volume.32 No. 6 p.529 ~ p.534
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Asymmetric Polymerase Chain Reaction-Single-Strand Conformation Polymorphism (Asymmetric PCR-SSCP) as a Simple Method for Allele Typing of HLA-DRB
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Kang Joo-Hyun
Kim Kyeong-Hee
Maeng Cheol-Young
Kim Kil-Lyong
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Abstract
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Asymmetric PCR and single-strand conformation polymorphism (SSCP) methods were combined to analyze human leukocyte antigen (HLA)-DRB allele polymorphism. Asymmetric PCR amplification was applied to generate single-stranded DNA (ssDNA) using the nonradioactive oligonucleotide primers desinged for the polymorphic exon 2 region. The conformational differences of ssDNAs, depending on the allele type, were analyzed by nondenaturing polyacrylamide gel electrophoresis and visualized by ethidium bromide staining. The ssDNAs were clearly separated from double-stranded DNA without interference and obviously migrated depending on their allele type. This method was applied to the genomic DNA either from homozygous or from heterozygous cell lines containing the DR4 allele as template DNA using DR4-specific primers, and satisfying results were obtained. Compared to the standard PCR-SSCP method, this asymmetric PCR-SSCP method has advantages of increased speed, reproducibility, and convenience. Along with PCR-SSP or sequence-based typing, this method will be useful in routine typing of HLA-DRB allele.
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KEYWORD
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Asymmetric PCR, HLA class II DR molecule, Polymorphism, Single-Strand Conformation Polymorphism
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