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Stability of peptide-HLA-I complexes and tapasin folding facilitation - tools to define immunogenic peptides

In English

Författare

Summary, in English

Only a small fraction of the peptides generated inside the cell end up being presented by HLA-I on the cell surface. High stability of peptide-HLA-I complexes and a low HLA-I tapasin-facilitation have been proposed to predict immunogenicity. We here set out to investigate if these parameters correlated and defined immunogenic peptides. Both peptide-HLA-B*08:01 and peptide-HLA-A*02:01 complexes showed small differences in tapasin-facilitation and larger differences in stability. This suggests that the stability of immunogenic peptide-HLA-I complexes vary above an HLA-I allomorph dependent lower limit (e. g. > 2 h for HLA-A*02:01), immunogenicity predicted by tapasin-facilitation may be defined by an equally allomorph unique upper value (e. g. tapasin-facilitation <1.5 for HLA-A*02:01), and variation above the stability-threshold does not directly reflect a variation in tapasin-facilitation. (C) 2012 Federation of European Biochemical Societies. Published by Elsevier B. V. All rights reserved.

Publiceringsår

2012

Språk

Engelska

Sidor

1336-1343

Publikation/Tidskrift/Serie

FEBS Letters

Volym

586

Issue

9

Dokumenttyp

Artikel i tidskrift

Förlag

Wiley-Blackwell

Ämne

  • Biological Sciences

Nyckelord

  • Tapasin
  • MHC-I
  • Peptide
  • Stability
  • Vaccine

Status

Published

Forskningsgrupp

  • Antigen Presentation

ISBN/ISSN/Övrigt

  • ISSN: 1873-3468