PMID- 29531227 OWN - NLM STAT- MEDLINE DCOM- 20180515 LR - 20190312 IS - 2041-1723 (Electronic) IS - 2041-1723 (Linking) VI - 9 IP - 1 DP - 2018 Mar 12 TI - Divergent T-cell receptor recognition modes of a HLA-I restricted extended tumour-associated peptide. PG - 1026 LID - 10.1038/s41467-018-03321-w [doi] LID - 1026 AB - Human leukocyte antigen (HLA)-I molecules generally bind short peptides (8-10 amino acids), although extended HLA-I restricted peptides (>10 amino acids) can be presented to T cells. However, the function of such extended HLA-I epitopes in tumour immunity, and how they would be recognised by T-cell receptors (TCR) remains unclear. Here we show that the structures of two distinct TCRs (TRAV4(+)TRAJ21(+)-TRBV28(+)TRBJ2-3(+) and TRAV4 (+) TRAJ8(+)-TRBV9(+)TRBJ2-1(+)), originating from a polyclonal T-cell repertoire, bind to HLA-B*07:02, presenting a 13-amino-acid-long tumour-associated peptide, NY-ESO-1(60-72). Comparison of the structures reveals that the two TCRs differentially binds NY-ESO-1(60-72)-HLA-B*07:02 complex, and induces differing extent of conformational change of the NY-ESO-1(60-72) epitope. Accordingly, polyclonal TCR usage towards an extended HLA-I restricted tumour epitope translates to differing TCR recognition modes, whereby extensive flexibility at the TCR-pHLA-I interface engenders recognition. FAU - Chan, Kok Fei AU - Chan KF AUID- ORCID: 0000-0001-7383-6544 AD - Olivia Newton-John Cancer Research Institute, and School of Cancer Medicine, La Trobe University, Heidelberg, VIC, 3084, Australia. AD - Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3010, Australia. AD - Infection and Immunity Program and Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia. AD - Department of Biochemistry & Genetics, La Trobe Institute of Molecular Science, La Trobe University, Bundoora, VIC, 3086, Australia. FAU - Gully, Benjamin S AU - Gully BS AD - Infection and Immunity Program and Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia. AD - Australian Research Council Centre of Excellence for Advanced Molecular Imaging, Monash University, Clayton, VIC, 3800, Australia. FAU - Gras, Stephanie AU - Gras S AD - Infection and Immunity Program and Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia. AD - Australian Research Council Centre of Excellence for Advanced Molecular Imaging, Monash University, Clayton, VIC, 3800, Australia. FAU - Beringer, Dennis X AU - Beringer DX AD - Infection and Immunity Program and Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia. FAU - Kjer-Nielsen, Lars AU - Kjer-Nielsen L AD - Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3010, Australia. FAU - Cebon, Jonathan AU - Cebon J AD - Olivia Newton-John Cancer Research Institute, and School of Cancer Medicine, La Trobe University, Heidelberg, VIC, 3084, Australia. FAU - McCluskey, James AU - McCluskey J AUID- ORCID: 0000-0002-8597-815X AD - Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, 3010, Australia. FAU - Chen, Weisan AU - Chen W AUID- ORCID: 0000-0002-5221-9771 AD - Olivia Newton-John Cancer Research Institute, and School of Cancer Medicine, La Trobe University, Heidelberg, VIC, 3084, Australia. weisan.chen@latrobe.edu.au. AD - Department of Biochemistry & Genetics, La Trobe Institute of Molecular Science, La Trobe University, Bundoora, VIC, 3086, Australia. weisan.chen@latrobe.edu.au. FAU - Rossjohn, Jamie AU - Rossjohn J AUID- ORCID: 0000-0002-2020-7522 AD - Infection and Immunity Program and Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia. jamie.rossjohn@monash.edu. AD - Australian Research Council Centre of Excellence for Advanced Molecular Imaging, Monash University, Clayton, VIC, 3800, Australia. jamie.rossjohn@monash.edu. AD - Institute of Infection and Immunity, Cardiff University School of Medicine, Heath Park, Cardiff, CF14 4XN, UK. jamie.rossjohn@monash.edu. LA - eng PT - Journal Article PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20180312 PL - England TA - Nat Commun JT - Nature communications JID - 101528555 RN - 0 (HLA-B*07:02 antigen) RN - 0 (HLA-B7 Antigen) RN - 0 (Neoplasm Proteins) RN - 0 (Peptides) RN - 0 (Receptors, Antigen, T-Cell) SB - IM MH - HLA-B7 Antigen/chemistry/genetics/*metabolism MH - Humans MH - Models, Molecular MH - Neoplasm Proteins/chemistry/genetics/*metabolism MH - Neoplasms/genetics/*metabolism MH - Peptides/chemistry/genetics/*metabolism MH - Protein Binding MH - Receptors, Antigen, T-Cell/chemistry/genetics/*metabolism PMC - PMC5847591 COIS- The authors declare no competing interests. EDAT- 2018/03/14 06:00 MHDA- 2018/05/16 06:00 PMCR- 2018/03/12 CRDT- 2018/03/14 06:00 PHST- 2017/09/06 00:00 [received] PHST- 2018/02/06 00:00 [accepted] PHST- 2018/03/14 06:00 [entrez] PHST- 2018/03/14 06:00 [pubmed] PHST- 2018/05/16 06:00 [medline] PHST- 2018/03/12 00:00 [pmc-release] AID - 10.1038/s41467-018-03321-w [pii] AID - 3321 [pii] AID - 10.1038/s41467-018-03321-w [doi] PST - epublish SO - Nat Commun. 2018 Mar 12;9(1):1026. doi: 10.1038/s41467-018-03321-w.