MHC class II complexes sample intermediate states along the peptide exchange pathway.
Wieczorek, M., Sticht, J., Stolzenberg, S., Gunther, S., Wehmeyer, C., El Habre, Z., Alvaro-Benito, M., Noe, F., Freund, C.(2016) Nat Commun 7: 13224-13224
- PubMed: 27827392 
- DOI: 10.1038/ncomms13224
- Primary Citation of Related Structures:  
4X5W, 4X5X - PubMed Abstract: 
The presentation of peptide-MHCII complexes (pMHCIIs) for surveillance by T cells is a well-known immunological concept in vertebrates, yet the conformational dynamics of antigen exchange remain elusive. By combining NMR-detected H/D exchange with Markov modelling analysis of an aggregate of 275 microseconds molecular dynamics simulations, we reveal that a stable pMHCII spontaneously samples intermediate conformations relevant for peptide exchange ...