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Personalized Peptide Arrays for Detection of HLA Alloantibodies in Organ Transplantation
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Published on: September 6, 2017

Twenty-five novel HLA-B alleles.

N K Steiner1, C Gans, L Baldassarre

  • 1Department of Oncology, Georgetown University Medical Center, Washington, DC, USA.

Tissue Antigens
|September 6, 2003
PubMed
Summary

This study introduces twenty-five new Human Leukocyte Antigen-B (HLA-B) alleles. These novel HLA-B variants were identified primarily through single nucleotide substitutions, expanding the known HLA-B genetic diversity.

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Published on: October 15, 2021

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.
  • Continuous discovery of novel HLA alleles is essential for accurate tissue typing and understanding immune diversity.

Purpose of the Study:

  • To report the identification and characterization of twenty-five novel HLA-B alleles.
  • To describe the molecular basis of these new HLA-B variants.

Main Methods:

  • Sequence-based typing methods were employed to identify novel HLA-B alleles.
  • Analysis focused on single nucleotide substitutions and their impact on amino acid sequences and epitopes.

Main Results:

  • Twenty-five new HLA-B alleles are described: B*0729, B*1309, B*1814, B*1815, B*2724, B*2725, B*3539, B*3926, B*4037, B*4040, B*4042, B*4043, B*4044, B*4204, B*440203, B*4428, B*4429, B*4430, B*4505, B*5308, B*5309, B*5510, B*5511, B*570102, and B*5709.
  • The majority of these novel alleles result from single nucleotide substitutions.
  • Specific variants include changes at the Bw4/Bw6 epitope and substitutions of conserved amino acids.

Conclusions:

  • The discovery of these twenty-five novel HLA-B alleles significantly expands the known HLA-B allele repertoire.
  • These findings contribute to a deeper understanding of HLA polymorphism and its implications for immune-related fields.