TCRpMHCmodels: Structural modelling of TCR-pMHC class I complexes

Kamilla Kjærgaard Jensen, Vasileios Rantos, Emma Christine Jappe, Tobias Hegelund Olsen, Martin Closter Jespersen, Vanessa Isabell Jurtz, Leon Eyrich Jessen, Esteban Lanzarotti, Swapnil Mahajan, Bjoern Peters, Morten Nielsen, Paolo Marcatili*

*Corresponding author for this work

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Abstract

The interaction between the class I major histocompatibility complex (MHC), the peptide presented by the MHC and the T-cell receptor (TCR) is a key determinant of the cellular immune response. Here, we present TCRpMHCmodels, a method for accurate structural modelling of the TCR-peptide-MHC (TCR-pMHC) complex. This TCR-pMHC modelling pipeline takes as input the amino acid sequence and generates models of the TCR-pMHC complex, with a median Cα RMSD of 2.31 Å. TCRpMHCmodels significantly outperforms TCRFlexDock, a specialised method for docking pMHC and TCR structures. TCRpMHCmodels is simple to use and the modelling pipeline takes, on average, only two minutes. Thanks to its ease of use and high modelling accuracy, we expect TCRpMHCmodels to provide insights into the underlying mechanisms of TCR and pMHC interactions and aid in the development of advanced T-cell-based immunotherapies and rational design of vaccines. The TCRpMHCmodels tool is available at http://www.cbs.dtu.dk/services/TCRpMHCmodels/.
Original languageEnglish
Article number14530
JournalScientific Reports
Volume9
Issue number1
Number of pages12
ISSN2045-2322
DOIs
Publication statusPublished - 2019

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