Three-dimensional structure of a complex of galanthamine (Nivalin) with acetylcholinesterase from Torpedo californica: implications for the design of new anti-Alzheimer drugsBartolucci, C., Perola, E., Pilger, C., Fels, G., Lamba, D.
(2001) Proteins 42: 182-191
- PubMed: 11119642
- DOI: 10.1002/1097-0134(20010201)42:2<182::aid-prot50>3.0.co;2-1
- Primary Citation of Related Structures:
- PubMed Abstract:
- Atomic Structure of Acetylcholinesterase from Torpedo californica: A Prototypic Acetylcholine-Binding Protein
Sussman, J.L., Harel, M., Frolow, F., Oefner, C., Goldman, A., Toker, L., Silman, I.
(1991) Science 253: 872
- Potent Acetylcholinesterase Inhibitors-Design, Synthesis, and Structure- Activity Relationships of Bis-Interacting Ligands in the Galanthamine Series
Mary, A., Renko, D.Z., Guillou, C., Thal, C.
(1998) Bioorg Med Chem 6: 1835
- New Kilogram-Synthesis of the Anti-Alzheimer Drug (-)-Galanthamine
Czollner, L., Frantsits, W., Kuenburg, B., Hedenig, U., Frohlich, J., Jordis, U.
(1998) Tetrahedron Lett 39: 2087
- Prediction of the Binding Site of (-)-Galanthamine in Acetylcholinesterase by Docking Studies
Pilger, C., Bartolucci, C., Lamba, D., Tropsha, A., Fels, G.
() To be published --: --
The 3D structure of a complex of the anti-Alzheimer drug galanthamine with Torpedo californica acetylcholinesterase is reported. Galanthamine, a tertiary alkaloid extracted from several species of Amarylidacae, is so far the only drug that shows a du ...
The 3D structure of a complex of the anti-Alzheimer drug galanthamine with Torpedo californica acetylcholinesterase is reported. Galanthamine, a tertiary alkaloid extracted from several species of Amarylidacae, is so far the only drug that shows a dual activity, being both an acetylcholinesterase inhibitor and an allosteric potentiator of the nicotinic response induced by acetylcholine and competitive agonists. The X-ray structure, at 2.5A resolution, shows an unexpected orientation of the ligand within the active site, as well as unusual protein-ligand interactions. The inhibitor binds at the base of the active site gorge, interacting with both the acyl-binding pocket and the principal quaternary ammonium-binding site. However, the tertiary amine group of galanthamine does not directly interact with Trp84. A docking study using the program AUTODOCK correctly predicts the orientation of galanthamine in the active site. The docked lowest-energy structure has a root mean square deviation of 0.5A with respect to the corresponding crystal structure of the complex. The observed binding mode explains the affinities of a series of structural analogs of galanthamine and provides a rational basis for structure-based drug design of synthetic derivatives with improved pharmacological properties. Proteins 2001;42:182-191.
Istituto di Strutturistica Chimica G. Giacomello, Monterotondo Stazione, Roma, Italy.