A simple competitive assay to determine peptide affinity for HLA class II molecules: A useful tool for epitope prediction - Archive ouverte HAL Access content directly
Journal Articles Journal of Immunological Methods Year : 2011

A simple competitive assay to determine peptide affinity for HLA class II molecules: A useful tool for epitope prediction

(1) , (2, 3) , (1) , (4) , (2, 3) , (1) , (5, 6, 7) , (2, 3) , (1, 4)
1
2
3
4
5
6
7

Abstract

We have designed a cytometry-based competition assay to evaluate peptide binding to empty recombinant HLA class II molecules. The efficiency of this assay was evaluated using recombinant HLA-DP0401 molecules (HLA-DP) produced in insect cells and 13 peptides from human telomerase reverse transcriptase (hTERT). We demonstrate that our method allowed accurate measurements of peptide Ki values and can thus discriminate strong, moderate and poor HLA-DP binders. In parallel, we showed that among hTERT peptides, the most immunodominant in healthy individuals were those with moderate affinity for HLA-DP while no T cell response could be evidenced against peptides with very strong or very low affinities for HLA-DP. This strongly suggests that the precise determination of peptide affinity with our method can improve HLA class II epitope prediction.
Embargoed file
Embargoed file
Ne sera jamais visible

Dates and versions

inserm-03365193 , version 1 (05-10-2021)

Identifiers

Cite

Karine Bernardeau, J Kerzhero, A Fortun, A Moreau-Aubry, E Favry, et al.. A simple competitive assay to determine peptide affinity for HLA class II molecules: A useful tool for epitope prediction. Journal of Immunological Methods, 2011, 371 (1 - 2), pp.97-105. ⟨10.1016/j.jim.2011.06.018⟩. ⟨inserm-03365193⟩
14 View
2 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More