Fig. 5 VYQLRARSV Epitope interaction with an antigen-binding pocket of HLA-DRB1*07:01, of MHCII-HLA Allele, Here, Tyrosine at 2nd, Glutamine at 3rd position and Serine at 8th position in epitope generate preferably a hydrogen bond due to the presence of partially charged positive and negative atoms, and 5th and 7tharginine residue side chains can form a salt bridge, while other amino acids result in van der Waals interactions.