Second, the Fab sequences of one heavy chain and one light chain on the template are selected, and the PyMOL align command was used to superimpose the Infliximab_Fab structure (green) on the template. This process was repeated for another Fab structure (cyan). Finally, one heavy chain from the infliximab Fab structure and the corresponding heavy chain Fc region was selected and saved as Infliximab_H1.pdb.