Interaction of noncompetitive inhibitors with the alpha3beta2 nicotinic acetylcholine receptor investigated by affinity chromatography and molecular docking.
A molecular model of the alpha3beta2 nAChR lumen channel was constructed and hydrophobic clefts were observed near the receptor gate. Docking simulations indicated that ligand-nAChR complexes were formed by hydrophobic interactions with the cleft and hydrogen bond interactions. The equilibrium constants and association and dissociation constant rates associated with the binding interactions were determined using nonlinear chromatography on an immobilized alpha3beta2 nAChR column. The computational-chromatography approach can be used to predict and describe ligand-nAChR interactions.
Jozwiak
Krzysztof
K
Department of Chemistry, Medical University of Lublin, Staszica 6, 20-081 Lublin, Poland. krzysztof.jozwiak@am.lublin.pl
Ravichandran
Sarangan
S
Collins
Jack R
JR
Moaddel
Ruin
R
Wainer
Irving W
IW
D001665:Binding Sites; D002460:Cell Line; D002853:Chromatography, Liquid; D006801:Humans; D006860:Hydrogen Bonding; D057927:Hydrophobic and Hydrophilic Interactions; D008024:Ligands; D008958:Models, Molecular; D018733:Nicotinic Antagonists / Q000737:chemistry*; D011978:Receptors, Nicotinic / Q000096:biosynthesis / Q000737:chemistry*; D013329:Structure-Activity Relationship
D008024:Ligands; D018733:Nicotinic Antagonists; D011978:Receptors, Nicotinic; C419362:nicotinic receptor alpha3beta2