Determination of optimal conformations for the binding between anti-inflammatory compounds from Plai rhizome and cyclooxygenase 2 using ArgusLab program
Abstract:
This study was to find the optimal conformations for the binding (Molecular Docking)
between anti-inflammatory substances from Plai (Zingiber cassumunar Roxb.) rhizome and the enzyme cyclooxygenase 2 using simulating the binding enzyme cyclooxygenase 2 using 3 isoforms with the ArgusLab 4.0.1 program. It was shown with the binding energy value. Additionally, the study considered the binding of substances and enzymes to find suitable conditions using ArgusDock and GADock methods. The study method began with creating a 2D structure of Plai rhizome extract and transforming into a 3D structure by adjusting the energy level to its lowest state. Binding simulation was performed on the ArgusLab 4.0.1 program by selecting the Argus Dock and GADock methods respectively. The obtained binding energy values were used to find the relationship between the cohesion energy values with the enzyme inhibition concentration (IC50) values of extracts from 5 types of Plai rhizome. The results found that the 5JVZ enzyme and 5 types of ligands using both methods had correlation coefficients (r) equal to 0.5029 and 0.6607, respectively. The results indicated that GADock was the ideal condition, which revealed good overlap and consistency. Therefore, it was found that the 5JVZ enzyme was
the most suitable for docking to obtain the optimal conformation. It can be concluded that this method is useful for application in studying the effects and finding the optimal conditions of various substances in other herbs