Fig. 4: Relative frequencies of residues to be in contact in RCSB Protein Data Bank.

For each IMGT ID, we calculated how often its heavy atoms are within 4.5 Å of the other antibody chain. Please note that certain IMGT IDs have higher occurrences, and the percentage here is taken as the number of contacts for a given IMGT ID out of the total number of times the residue occurs in the PDB. A Ratio of contacts for each IMGT ID for heavy chains. B Ratio of contacts for each IMGT ID for light chains.