DESIGN AND MOLECULAR DOCKING STUDIES OF NOVEL ANTIMICROBIAL PEPTIDES USING AUTODOCK MOLECULAR DOCKING SOFTWARE
DOI:
https://doi.org/10.22159/ajpcr.2017.v10s4.21332Keywords:
Antimicrobial peptides, MP196, AutoDock Vina, Molecular dockingAbstract
Objective: Design of novel antimicrobial peptides and study through the molecular docking.
Methods: The molecular structures were drawn in ChemBiodraw ultra and by the help of ChemBiodraw 3D, all structures were energy minimized by theMM2 method and converted to pdbextension file which is readable at the ADT interface. The AutoDock Vina (ADT) 1.5.6 software is used for molecular docking purposes.
Results: Eight antimicrobial peptides (AMPs) were designed based on theMP196antimicrobial peptide. Among these KP_03R (FWRWRW-NH2) showed good binding affinity. These peptides also showed the stereochemical influence on affinity toward the3vma protein of E. coli, where AMP with R stereochemistry showed better activity than its opposite stereochemistry. Â
Conclusion: Novel AMPs were designed by modifications on the MP196 a short chain of amino acids antimicrobial peptides. Molecular docking software was used to determine the binding affinity between drug and receptor protein. Among all the designed peptides KP_03R(FWRWRW-NH2) showed the maximum binding affinity against thepenicillin-binding protein of E.coli and also exhibited stereoselective activity.
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