Acetylcholine (space filling representation) docked into the agonist binding pocket of human nAChR, at the interface of the alpha4 (subunit 1) and beta2 (subunit 2) monomers. Gold: alpha4, cyan: beta2, yellow: ligand binding site. Other interfaces modeled in this study are also indicated.
Schapira et al. BMC Structural Biology 2002 2:1 doi:10.1186/1472-6807-2-1