Figure 3.
Docking models of huperzine-4C-naringenin (colored cyan) binding to the active site of BuChE enzyme (colored purple). (A) Binding pose of huperzine-4C-naringenin looking down the catalytic gorge of BuChE. (B) Ligand huperzine-4C-naringenin (cyan colored sticks) docked with binding site residues of BuChE. Hydrogen bonding is represented by red lines and the distance measured in Å. (C) Huperzine-4C-naringenin superimposed with a chlorotacrine-tryptophan heterodimer pre-bound with the crystal structure of the BuChE enzyme target (PDB ID: 6I0C).