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HLA-B*51:315, identified using next-generation sequencing-based typing in a Korean individual
Ji Yeon Ham1, So-Jung Choi2, Jimin Ryu1
1Department of Laboratory Medicine, Kyungpook National University Hospital, Daegu, South Korea.
HLA
|April 5, 2020
Summary
A novel Human Leukocyte Antigen B variant, HLA-B*51:315, has been identified. It differs from HLA-B*51:01:01:01 by a single nucleotide polymorphism at codon 87.
Area of Science:
- Immunogenetics
- Molecular biology
- Human Leukocyte Antigen (HLA) system
Background:
- The Human Leukocyte Antigen (HLA) system plays a critical role in immune response and transplantation.
- HLA-B alleles are highly polymorphic and associated with various immune-related conditions.
- Accurate HLA typing is crucial for clinical applications and immunological research.
Purpose of the Study:
- To characterize a newly identified HLA-B allele, designated HLA-B*51:315.
- To determine the specific genetic variation differentiating HLA-B*51:315 from known alleles.
Main Methods:
- High-resolution HLA typing methodologies were employed.
- DNA sequencing was performed to identify nucleotide differences.
- Comparative sequence analysis was conducted against reference HLA databases.
Main Results:
- A novel HLA-B allele, HLA-B*51:315, was identified and characterized.
- This new allele differs from the common HLA-B*51:01:01:01 by a single nucleotide polymorphism (SNP).
- The SNP is located in codon 87, resulting in an amino acid change from CAG to CGG.
Conclusions:
- The identification of HLA-B*51:315 expands the known diversity of the HLA-B locus.
- This finding may have implications for HLA imputation, population genetics, and understanding HLA associations with diseases.
- Further studies are warranted to investigate the functional and clinical significance of HLA-B*51:315.
