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B*13:50, a novel HLA-B*13 allele, identified by sequence-based typing
1Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
Tissue Antigens
|September 9, 2011
Summary
A new human leukocyte antigen (HLA) B allele, HLA-B*13:50, was identified in a Chinese donor. This novel allele differs from HLA-B*13:01:01 by a single nucleotide substitution.
Area of Science:
- Immunogenetics
- Molecular biology
Background:
- Human Leukocyte Antigen (HLA) genes are crucial for immune response.
- Polymorphisms in HLA genes, particularly HLA-B, influence transplant outcomes and disease susceptibility.
Purpose of the Study:
- To report the discovery and characterization of a novel HLA-B allele.
Main Methods:
- High-resolution sequence-based typing was employed.
- Genetic analysis focused on identifying nucleotide variations.
Main Results:
- A novel HLA-B allele, designated HLA-B*13:50, was identified in a Chinese individual.
- HLA-B*13:50 is distinguished from HLA-B*13:01:01 by a single nucleotide substitution (A to T) at position 482 in exon 3.
Conclusions:
- The identification of HLA-B*13:50 expands the known HLA-B allele repertoire.
- This finding contributes to the understanding of HLA polymorphism in diverse populations.
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