Novel HLA-B*15 alleles identified in potential marrow donors

Autor: S. Birkos, Malek Kamoun, Jane Kearns, S. Bassinger, Thomas M. Williams, J. Yee, George D. Montoya, M. McKeen, Jin Wu, B. B. Griffith, I.S. Gourley
Rok vydání: 2000
Předmět:
Zdroj: Tissue Antigens. 55:455-459
ISSN: 0001-2815
Popis: Several methods for low-resolution class I typing of potential bone marrow donors are available. The National Marrow Donor Program (NMDP) has initiated pilot projects for large-scale DNA-based class I typing to initially characterize donors. Sequence-specific oligonucleotide probe hybridization and sequence-specific primer polymerase chain reaction (PCR) screening of 3,500 NMDP potential donors suggested the presence of variants of known HLA-B*15 variants in 3 donors. PCR products encompassing HLA-B locus exons 1 through 3 were prepared and subcloned. Sequencing revealed 3 alleles differing from known HLA-B*15 alleles by nucleotide substitutions resulting in predicted novel HLA-B antigens. The new alleles occur in distinct ethnic groups. These findings further illustrate the substantial genetic variation present at the HLA-B locus within human populations.
Databáze: OpenAIRE