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A novel HLA-B*40 allele, HLA-B*4083, identified in a Korean individual

K W Lee1

  • 1Hallym Institute for Genome Application, Hallym University, Anyang, Korea. hlakw@hanmail.net

Tissue Antigens
|April 4, 2008
PubMed

Insights

The novel HLA-B*4083 allele is distinguished from HLA-B*400601 by three nucleotide and two amino acid substitutions. This genetic variation impacts human leukocyte antigen (HLA) diversity.

Area of Science:

  • Immunogenetics
  • Molecular Biology
  • Human Leukocyte Antigen (HLA) system

Background:

  • The human leukocyte antigen (HLA) system plays a crucial role in immune response and transplantation.
  • Polymorphisms within HLA genes contribute to diverse immune capabilities and disease susceptibility.

Observation:

  • A novel HLA allele, designated HLA-B*4083, was identified and compared to its closest known relative, HLA-B*400601.
  • Sequence analysis revealed three distinct nucleotide substitutions in HLA-B*4083 at codons 31, 32, and 41.

Findings:

  • The nucleotide changes at codons 31 (ACG to ACC), 32 (CTG to CAG), and 41 (ACG to GCG) result in specific amino acid alterations.
  • Residue 32 changes from Leucine to Glutamine, and residue 41 changes from Threonine to Alanine.

Implications:

  • These genetic variations in HLA-B*4083 may influence peptide binding and T-cell recognition.
  • Understanding novel HLA alleles is vital for high-resolution HLA typing and personalized medicine.
  • Further research is needed to elucidate the functional consequences of these specific amino acid substitutions in HLA-B*4083.

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