Inhibition of 3-deoxy-D-arabino-heptulosonate 7-phosphate synthase from Mycobacterium tuberculosis: In silico screening and in vitro validation

European Journal of Medicinal Chemistry
2015.0

Abstract

Tuberculosis, caused by Mycobacterium tuberculosis, remains a serious global health threat, highlighting the urgent need for novel antituberculosis drugs. The shikimate pathway, responsible for aromatic amino acid biosynthesis, is required for the growth of Mycobacterium tuberculosis and is a potential drug target. 3-deoxy-D-arabino-heptulosonate 7-phosphate synthase (mtDAH7Ps) catalyzes the first step in shikimate pathway. E-pharmacophore models for inhibitors of mtDAH7Ps - tyrosine, phenylalanine, phosphoenolpyruvate and (2S)-2,7-bis(phosphonooxy)heptanoic acid were screened against ZINC synthetic and natural compounds databases. The shortlisted compounds were subjected to induce fit docking and validated by Prime/Molecular Mechanics Generalized Born Surface Area calculation to predict ligand binding energy and ligand strain energy for ligand and receptor. The lead compounds were screened for their inhibitory activity against purified mtDAH7Ps enzyme. Lead compounds inhibited mtDAH7Ps in a concentration-dependent manner; with an IC50 value of 21 μM, 42 μM and 54 μM for α-Tocopherol, rutin and 3-Pyridine carboxyaldehyde respectively. Molecular Dynamics analysis for 50 ns of the active compounds-mtDAH7Ps complexes showed that the backbone of mtDAH7Ps was stable. These results suggest that α-tocopherol, 3 - Pyridine carboxyaldehyde and rutin could be novel drug leads to inhibit mtDAH7Ps in M. tuberculosis.

Knowledge Graph

Similar Paper

Inhibition of 3-deoxy-D-arabino-heptulosonate 7-phosphate synthase from Mycobacterium tuberculosis: In silico screening and in vitro validation
European Journal of Medicinal Chemistry 2015.0
Identification and development of 2-methylimidazo[1,2-a]pyridine-3-carboxamides as Mycobacterium tuberculosis pantothenate synthetase inhibitors
Bioorganic & Medicinal Chemistry 2014.0
Design and development of new class of Mycobacterium tuberculosis l-alanine dehydrogenase inhibitors
Bioorganic & Medicinal Chemistry 2016.0
Design and development of novel Mycobacterium tuberculosis l-alanine dehydrogenase inhibitors
European Journal of Medicinal Chemistry 2015.0
Molecular docking and in silico studies on analogues of 2-methylheptyl isonicotinate with DHDPS enzyme of Mycobacterium tuberculosis
Medicinal Chemistry Research 2013.0
Synthesis, Biological Evaluation, And Molecular Modeling of Chalcone Derivatives As Potent Inhibitors of Mycobacterium tuberculosis Protein Tyrosine Phosphatases (PtpA and PtpB)
Journal of Medicinal Chemistry 2012.0
Discovery of biphenyls bearing thiobarbiturate fragment by structure-based strategy as Mycobacterium tuberculosis protein tyrosine phosphatase B inhibitors
Bioorganic & Medicinal Chemistry 2022.0
Discovery of target based novel pyrrolyl phenoxy derivatives as antimycobacterial agents: An in silico approach
European Journal of Medicinal Chemistry 2015.0
Design, synthesis and biological activity of novel substituted 3-benzoic acid derivatives as MtDHFR inhibitors
Bioorganic & Medicinal Chemistry 2020.0
Identification of novel potential antibiotics for tuberculosis by in silico structure-based drug screening
European Journal of Medicinal Chemistry 2011.0