Fig. 4

a Graphical representation of human HLA-B7 allele (shown in cyan and purple) with bound peptide 1 “VMHKKEVVL” (yellow). Multiple residues of the receptor protein (green) interact (dotted lines) with the peptide residues (red). b LigX interaction diagram illustrating the chain A and chains B residues interacting via hydrogen bond (green), two water mediated interaction (yellow), vanderval interaction (blue) to the peptide 1