Prashant Singh, Kamlesh Kumari, Satish K Awasthi and Ramesh Chandra
A novel series of Chalcones were synthesized targets asexual blood stages of Plasmodium falciparum has been analyzed by utilizing a combination of molecular modeling techniques. Statistically significant structure-based quantitative structure activity relationships models were generated and validated through acceptable predictive ability to support internal and external set of compounds. Screening of most valuable drug among of pre-synthesized drug on the basis of binding efficiency to target receptor was carried out by docking view. Prior this pre-computed Mean IC50 and MIC value were also taken in consideration. The most effective compound on the basis all consideration was found. Previous studies have suggested that Ca2+-ATPase (PfATP6) of P. falciparum is the target of many anti-malarial drugs. However, the mechanism of inhibition of Ca2+- ATPase (PfATP6) is not known. Here we address this issue using bioinformatics tools. We generated a molecular model of Ca2+-ATPase (PfATP6) of P. falciparum and performed molecular docking of all chalcones. Molecular docking programme Glide iGEMDock was used to determine binding feasibility of 52 analogues of chalcones. The comparison of docking parameters showed, more than 5 analogues are better ligands of PfATP6. The binding of chalocones to PFATP6 is mediated by both hydrogen bonding, hydrophobic and polar interactions. Our results suggest that chalcones analogues are promising lead compounds for the development of anti-malarial drugs.
