Molecular Modeling and Virtual Screening Approach to Discover Potential Antileishmanial Inhibitors Against Ornithine Decarboxylase

Title:Molecular Modeling and Virtual Screening Approach to Discover Potential Antileishmanial Inhibitors Against Ornithine Decarboxylase

Volume: 19 Issue: 10

Author(s): Rajan Kumar Pandey, Priyanka Prajapati, Sukriti Goyal, Abhinav Grover and Vijay Kumar Prajapati

Affiliation:

Keywords: Leishmaniasis, molecular docking, molecular modeling, antileishmanial, molecular dynamics, ornithine decarboxylase.

Abstract: Background: Visceral leishmaniasis (VL) is a tropical neglected disease, which encounters poorest of poor people living in Asia, Africa and Latin America; causing the mortality of more than 30,000 people worldwide. The armamentarium for the treatment of VL cases is limited and continuously facing decreasing of efficacy for existing drugs. Ornithine decarboxylase (ODC) is one of the interesting drug targets in Leishmania donovani, due to its association with redox metabolism.

Objective: To search an antileishmanial compound showing the inhibitory effect against ornithine decarboxylase of Leishmania donovani

Method: In this study, we have modelled the three dimensional structure of ODC using Phyre2 (Protein Homology/analog Y Recognition Engine V 2.0), followed by validation using VADAR (Volume, Area, Dihedral Angle Reporter), RAMPAGE, ERRAT, Verify3D and ProSA (Protein Structure Analysis). In order to develop potential antileishmanial, we conducted a high throughput virtual screening of ZINC database ligands comprising of 135,966 compounds. Furthermore, QikProp, ADMET predictor and MM-GBSA was performed for ADME (Absorption, Distribution, Metabolism and Elimination), toxicity and binding energy prediction for top ligands, respectively. Finally, molecular dynamics simulation was performed to get potential antileishmanial compounds.

Result: Screening of zinc database compounds using high throughput virtual screening has given twelve compounds with good inhibition activity against ornithine decarboxylase. Furthermore, the molecular dynamics simulation work reveals that ZINC67909154 could be a potent inhibitor and this compound can be used to combat VL disease

Conclusion: This study concludes that ZINC67909154 has the great potential to inhibit L. donovani ODC and would add to the drug discovery process against visceral leishmaniasis.

Cite this article as:

Pandey Kumar Rajan, Prajapati Priyanka, Goyal Sukriti, Grover Abhinav and Prajapati Kumar Vijay, Molecular Modeling and Virtual Screening Approach to Discover Potential Antileishmanial Inhibitors Against Ornithine Decarboxylase, Combinatorial Chemistry & High Throughput Screening 2016; 19 (10) . https://dx.doi.org/10.2174/1386207319666160907100134

DOI https://dx.doi.org/10.2174/1386207319666160907100134	Print ISSN 1386-2073
Publisher Name Bentham Science Publisher	Online ISSN 1875-5402