Active sites and interaction of receptor-ligand. Model of generated Ta pAPX protein showing ten active sites by Q-SiteFinder tool (in different colours) containing different amino acid residues. First five active sites shown in space fill (A). Molecular interaction studies between Ta pAPX model and substrate H2O2 by Autodock vina software. Green dots represent the Hydrogen bonding between ASN55 and SER57 (B).