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Tissue Antigens. 1997 Jul;50(1):74-6.

Dimorphic primers derived from intron 1 for use in the molecular typing of HLA-B alleles.

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  • 1Immunology Program, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.


We have identified a dimorphic site in intron 1 of the HLA-B gene. Oligotyping was performed on about 3000 samples using primers derived from this dimorphic site in combination with a locus-specific primer derived from intron 3. The distribution of B-alleles bearing each of the dimorphic sequences was approximately equal. These primers were mutually exclusive and yielded approximately 50% of the heterozygous samples as apparently homozygous in PCR products. Intermediate and almost high-resolution oligotyping of HLA-B alleles was achieved using 35 and 63 hybridization probes, respectively. This dimorphic site will provide a useful tool for other PCR-based HLA-B typing approaches.

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