Figure 3a and 3b: Peptide binding grooves of HLA- DQ2 and DQ8: Schematic illustration the peptide binding groove of HLA-DQ2 and HLA-DQ8 molecules and requirements of the peptides to bind respectively. (This representation is created by authors and team based on a compiled data from references Johansen et al. [26]; Godkin et al. [27]; van de Wal et al., [19]; Mazzarella et al., [28]; Costantini et al., [29]).