As of 1 April 2026, the PSJD database will become an archive and will no longer accept new data. Current publications from Polish scientific journals are available through the Library of Science: https://bibliotekanauki.pl
Over the last decade, the number of crystal structures of major histocompatibility complex (MHC) class I-peptide complexes has increased rapidly. These studies have provided unique and fascinating insights into the structural basis of MHC-peptide interactions and the specificity of peptide recognition by MHC class I molecules.