<p>The number of all and SC contacts with alpha and beta chains for DR peptides positions.</p>

The DR structures are listed by rows. Peptide residues per position are listed in the same row for each structure. Peptide positions are given in columns; the alpha and beta chains’ contacts are listed separately. The post-translationally modified residues (citrullination of Arg, phosphorylation of Ser), missing with CSU software, are marked with “*”. Also underlined are the residues that were present in the PDB peptide sequence but whose coordinates were unmodeled, so these residues were also missing with CSU software. Number of contacts listed in 2 rows per structure: “Full” (number of all contacts) and “SC” (number of SC). (XLSX)