| Literature DB >> 19392807 |
Y Xiao1, A M Lazaro, C Masaberg, M Haagenson, C Vierra-Green, S Spellman, S Dakshanamurthy, J Ng, C K Hurley.
Abstract
DNA sequencing of 268 individuals drawn from four US populations carrying two unresolved DRB1*14 alleles differing only outside the antigen recognition site identified DRB1*1454 in the majority. A database of 4222 human leukocyte antigen (HLA)-matched hematopoietic stem cell transplantation donor-recipient pairs was queried to determine the number likely mismatched for DRB1*140101/DRB1*1454 but matched for class I loci. A power calculation suggests that more than 88,000 transplants among European Americans will be needed to identify sufficient 7/8 allele-matched pairs to evaluate the impact of the DRB1*140101/DRB1*1454 mismatch on transplant outcome. Molecular modeling of the HLA-DR interaction with the T-cell receptor and with CD4 suggests that the amino acid substitution distinguishing the two alleles will have minimal impact on allorecognition.Entities:
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Year: 2009 PMID: 19392807 PMCID: PMC3224974 DOI: 10.1111/j.1399-0039.2009.01245.x
Source DB: PubMed Journal: Tissue Antigens ISSN: 0001-2815