Ab initio molecular simulations for proposing potent inhibitors to butyrylcholinesterases
| Autor: | Takeru Murakawa, Mahmud Tareq Hassan Khan, Noriyuki Kurita, Yuki Matsushita, Suzuki Tomoya |
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| Rok vydání: | 2014 |
| Předmět: |
Models
Molecular Stereochemistry Ab initio Molecular simulation Molecular Dynamics Simulation Computer Graphics and Computer-Aided Design Acetylcholinesterase Molecular mechanics chemistry.chemical_compound chemistry Butyrylcholinesterase Materials Chemistry medicine Cholinesterase Inhibitors Physical and Theoretical Chemistry Spectroscopy Acetylcholine Function (biology) Fragment molecular orbital medicine.drug |
| Zdroj: | Journal of Molecular Graphics and Modelling. 54:54-61 |
| ISSN: | 1093-3263 |
| Popis: | Butyrylcholinesterase (BChE) exists mainly at neuromuscular junctions and plays an important role in the hydrolyzing mechanism of neurotransmitter acetylcholine. A variety of compounds have been produced in order to inhibit the function of BChE. We here investigate the specific interactions between BChE and some ligands (Kx) with large binding affinity to BChE, using ligand-docking, classical molecular mechanics and ab initio fragment molecular orbital (FMO) methods. The binding energies between BChE and Kx evaluated by the FMO method have a correlation with the 50% inhibition concentration obtained by the previous experiments. In addition, the FMO calculations highlight that Asp70, Trp82 and Tyr128 residues of BChE contribute significantly to the binding between BChE and Kx. Based on the results, we propose some novel ligands and elucidate that one of the proposed ligands can bind strongly to BChE. The present results are useful for developing potent inhibitors to BChE. |
| Databáze: | OpenAIRE |
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