Download MendeleyCrystal structure of the human class II MHC protein HLA-DR1 complexed with an influenza virus peptide.
Stern, L.J., Brown, J.H., Jardetzky, T.S., Gorga, J.C., Urban, R.G., Strominger, J.L., Wiley, D.C.(1994) Nature 368: 215-221
- PubMed: 8145819
- DOI: https://doi.org/10.1038/368215a0
- Primary Citation of Related Structures:
1DLH - PubMed Abstract:
An influenza virus peptide binds to HLA-DR1 in an extended conformation with a pronounced twist. Thirty-five per cent of the peptide surface is accessible to solvent and potentially available for interaction with the antigen receptor on T cells. Pockets in the peptide-binding site accommodate five of the thirteen side chains of the bound peptide, and explain the peptide specificity of HLA-DR1. Twelve hydrogen bonds between conserved HLA-DR1 residues and the main chain of the peptide provide a universal mode of peptide binding, distinct from the strategy used by class I histocompatibility proteins.
Organizational Affiliation:
Department of Biochemistry and Molecular Biology, Harvard University, Cambridge Massachusetts 62138.
