TCRs with Distinct Specificity Profiles Use Different Binding Modes to Engage an Identical Peptide–HLA Complex

Abstract excerpt

Abstract The molecular rules driving TCR cross-reactivity are poorly understood and, consequently, it is unclear the extent to which TCRs targeting the same Ag recognize the same off-target peptides. We determined TCR–peptide–HLA crystal structures and, using a single-chain peptide–HLA phage library, we generated peptide specificity profiles for three newly identified human TCRs specific for the cancer testis Ag...

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