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
- Also Cited By: 3I6Z, 3I6M
- 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
- 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
- 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
- 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.