Interaction of Noncompetitive Inhibitors with the α3β2 Nicotinic Acetylcholine Receptor Investigated by Affinity Chromatography and Molecular Docking

2007 ◽  
Vol 50 (24) ◽  
pp. 6279-6283 ◽  
Author(s):  
Krzysztof Jozwiak ◽  
Sarangan Ravichandran ◽  
Jack R. Collins ◽  
Ruin Moaddel ◽  
Irving W. Wainer

Author(s):  
Sarath Sasi Kumar ◽  
Anjali T

Objective: In silico design and molecular docking of 1,2-benzisoxazole derivatives for their analgesic and anti-inflammatory activity using computational methods.Methods: In silico molecular properties of 1,2-benzisoxazole derivatives were predicted using various software’s such as Chemsketch, Molinspiration, PASS and Schrodinger to select compounds having optimum drug-likeness, molecular descriptors resembling those of standard drugs and not violating the ‘Lipinski rule of 5’. Molecular docking was performed on active site of nicotinic acetylcholine receptor (PDB: 2KSR) for analgesic activity and COX-2 (PDB: 6COX) for anti-inflammatory activity using Schrodinger under maestro molecular modelling environment.Results: From the results of molecular docking studies of 1,2-benzisoxazole derivatives, all the compounds showed good binding interactions with Nicotinic acetylcholine receptor and COX-2. Compounds 4a and 4c showed highest binding scores (-7.46 and-7.21 respectively) with nicotinic acetylcholine receptor and exhibited maximum analgesic activity. Compound 4a showed highest binding score (-7.8) with COX-2 and exhibited maximum anti-inflammatory activity.Conclusion: All the derivatives of 1,2-benzisoxazole showed good analgesic and anti-inflammatory activity as predicted using molecular docking on respective receptors.



Author(s):  
A. Amala Lourthuraj ◽  
M. Masilamani Selvam ◽  
Bharathi Ravikrishnan ◽  
M. Vinoth ◽  
Waheeta Hopper

Objective: The present research was aimed to understand the molecular docking efficiency of a plant-derived compound cleistanthin-A and a common ingredient in tobacco consumption nicotine with nicotinic acetylcholine receptor (nAChR).Methods: The 3-D structure of nAChR was retrieved from the protein data bank (ID 5AFH). Ligand was obtained from the PUBCHEM. The in silico protocol comprised of three steps: high-throughput virtual screening (HTVS), standard preci­sion (SP) and extra precision (XP). The screened molecules were ranked accordingly using glide score. Schrödinger tool was used to perform the docking analysis.Results: The binding efficiency of the nicotine and cleistanthin-A was found to be docked at the cys-cys loop of the receptor. Based upon the glide score and glide energy it can be reported that, nicotine binding can be inhibited by the binding of cleistanthin-A to the nAChR.Conclusion: The docking efficiency of cleistanthin-A was good compared to nicotine towards nAChR. Hence, cleistanthin–A was derived as a better choice as an alternative for nicotine in smoke therapy.



Biochemistry ◽  
2003 ◽  
Vol 42 (20) ◽  
pp. 6106-6114 ◽  
Author(s):  
George P. Hess ◽  
Armanda M. Gameiro ◽  
Ryan C. Schoenfeld ◽  
Yongli Chen ◽  
Henning Ulrich ◽  
...  


1993 ◽  
Vol 13 (2) ◽  
pp. 99-110 ◽  
Author(s):  
Vesna A. Eterović ◽  
Richard M. Hann ◽  
P. A. Ferchmin ◽  
Abimael D. Rodriguez ◽  
Lian Li ◽  
...  


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