Related Experiment Video
Updated: Jul 12, 2025

Continuous Fluorescence-Based Endonuclease-Coupled DNA Methylation Assay to Screen for DNA Methyltransferase Inhibitors
Published on: August 5, 2022
Targeting allosteric binding site in methylenetetrahydrofolate dehydrogenase 2 (MTHFD2) to identify natural product
Nisarg Rana1, Dhaval Patel2, Meet Parmar2
1Department of Chemistry, School of Energy Technology, Pandit Deendayal Energy University, Gandhinagar, 382426, India.
Abstract:
Cancer has been viewed as one of the deadliest diseases worldwide. Among various types of cancer, breast cancer is the most common type of cancer in women. Methylenetetrahydrofolate dehydrogenase 2 (MTHFD2) is a promising druggable target and is overexpressed in cancerous cells, like, breast cancer. We conducted structure-based modeling on the allosteric site of the enzyme. Targeting the allosteric site avoids the problem of drug resistance. Pharmacophore modeling, molecular docking, HYDE assessment, drug-likeness, ADMET predictions, simulations, and free-energy calculations were performed. The RMSD, RMSF, RoG, SASA, and Hydrogen-bonding studies showed that seven candidates displayed stable behaviour. As per the literature, average superimposed simulated structures revealed a similar protein conformational change in the αE'-βf' loop, causing its displacement away from the allosteric site. The MM-PBSA showed tight binding of six compounds with the allosteric pocket. The effect of inhibitors interacting in the allosteric site causes a decrease in the binding energy of J49 (active-site inhibitor), suggesting the effect of allosteric binding. The PCA and FEL analysis revealed the significance of the docked compounds in the stable behaviour of the complexes. The outcome can contribute to the development of potential natural products with drug-like properties that can inhibit the MTHFD2 enzyme.
Insights
Researchers identified novel compounds targeting the MTHFD2 enzyme
Area of Science:
- Biochemistry
- Computational Chemistry
- Drug Discovery
Background:
- Breast cancer is a leading cause of death in women globally.
- Methylenetetrahydrofolate dehydrogenase 2 (MTHFD2) is overexpressed in breast cancer and presents a druggable target.
- Allosteric site targeting offers a strategy to overcome drug resistance.
Purpose of the Study:
- To identify potential inhibitors targeting the allosteric site of MTHFD2.
- To explore natural products as candidates for MTHFD2 inhibition.
- To investigate the binding mechanisms and stability of potential inhibitors.
Main Methods:
- Structure-based modeling and pharmacophore modeling were employed.
- Molecular docking, HYDE assessment, and ADMET predictions were performed.
- Molecular dynamics simulations, free-energy calculations, MM-PBSA, PCA, and FEL analysis were conducted.
Main Results:
- Seven candidate compounds demonstrated stable behavior in simulations.
- Six compounds exhibited tight binding to the MTHFD2 allosteric pocket.
- Allosteric inhibition decreased the binding energy of an active-site inhibitor, confirming allosteric effects.
Conclusions:
- The study identified promising natural product-like compounds for MTHFD2 inhibition.
- These compounds show potential for developing new breast cancer therapeutics.
- Targeting the MTHFD2 allosteric site is a viable strategy for drug development.
More Related Videos
Related Concept Videos
Ligand Binding and Linkage
Enzyme Inhibition
Allosteric Proteins-ATCase
Aspartate transcarbamoylase (ATCase) is a cytosolic enzyme that catalyzes the condensation of L-aspartate and carbamoyl phosphate to N-carbamoyl-L-aspartate. This reaction is the first step in pyrimidine biosynthesis. UTP and CTP, the end products of the pyrimidine synthesis...
Targets for Drug Action: Overview
Receptors are either membrane-spanning or intracellular proteins, which upon binding a ligand, get activated and transmit the signal downstream to elicit a response. Drugs bind receptors, either mimicking the action of endogenous ligands or blocking the receptor activity to bring about a modified response. Nearly 35% of approved drugs target the G...
The Electron Transport Chain
Inhibitors of the electron transport chain
Rotenone, a widely used pesticide, prevents electron transfer from Fe-S cluster to ubiquinone or Q...

