Characterisation of the Novel HLA-DRB1*13:371 Allele by Sequencing-Based Typing

Area of Science:

• Immunogenetics
• Molecular biology
• Human leukocyte antigen (HLA) research

Background:

• The human leukocyte antigen (HLA) system plays a critical role in immune response.
• Understanding HLA allele diversity is crucial for transplantation and disease association studies.

Purpose of the Study:

• To characterize a novel HLA allele, designated HLA-DRB1*13:371.
• To document the specific genetic difference between this new allele and a previously known allele.

Main Methods:

• Nucleotide sequencing of the HLA-DRB1 gene.
• Comparison of the novel sequence with existing HLA allele databases.

Main Results:

• Identification and characterization of the novel allele HLA-DRB1*13:371.
• The new allele differs from HLA-DRB1*13:02:01:01 by a single nucleotide substitution.
• The substitution is located in codon 127 within exon 3 of the HLA-DRB1 gene.

Conclusions:

• The discovery of HLA-DRB1*13:371 adds to the known diversity of HLA alleles.
• This finding may have implications for high-resolution HLA typing and population genetics.