Identification And Sequencing Of Hla-B*0714 And B*2718 Alleles And Novel Exon 1 Sequences Of B*0709 And B*2714 Alleles In Potential Bone Marrow Donors
TISSUE ANTIGENS(2002)
Abstract
Sequence specific oligonucleotide probe hybridization and sequence specific primer PCR typing of volunteer bone marrow donors suggested the presence of variants of known HLA-B alleles in two individuals. PCR products encompassing HLA-B locus exons 1, 2, and 3 were prepared, subcloned and sequenced. A Hispanic individual had a novel B*07 allele (B*0714) and a Chinese individual had a novel B*27 allele (B*2718). In two other individuals, a previously unknown sequence of exon 1 was determined for HLA-B*0709 (African American) and B*2714 (Native American). These findings further illustrate the substantial genetic variation present at the HLA-B locus within human populations. We discuss the structural variation in the protein sequence for these HLA-B alleles and its potential functional effects.
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Key words
bone marrow transplantation,DNA sequencing,HLA-B
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