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Updated: May 28, 2025

A Kinetic Fluorescence-based Ca2+ Mobilization Assay to Identify G Protein-coupled Receptor Agonists, Antagonists, and Allosteric Modulators
Published on: February 20, 2018
Covalent-Allosteric Inhibitors: Do We Get the Best of Both Worlds?
Hui Tao1, Bo Yang1, Atena Farhangian1
1Borch Department of Medicinal Chemistry and Molecular Pharmacology, Purdue Institute for Drug Discovery, Purdue University, West Lafayette, Indiana 47907, United States.
Covalent-allosteric inhibitors (CAIs) combine potency and specificity for drug development. This perspective explores CAI discovery for challenging targets and computational design strategies.
Area of Science:
- Medicinal Chemistry
- Drug Discovery
- Biochemistry
Background:
- Covalent-allosteric inhibitors (CAIs) offer advantages over traditional covalent or allosteric drugs.
- CAIs combine increased potency, prolonged effects, and reduced resistance with enhanced specificity and lower toxicity.
- They represent a promising strategy for targeting previously undruggable proteins.
Purpose of the Study:
- To analyze the discovery of known CAIs targeting key protein families.
- To discuss the role of computational methods in rational CAI design.
- To highlight the potential of CAIs in drug discovery.
Main Methods:
- Review of existing literature on CAI discovery.
- Analysis of CAIs targeting protein phosphatases, protein kinases, and GTPases.
- Discussion of computational approaches for CAI design.
Main Results:
- Identified successful CAI strategies across diverse protein families.
- Highlighted challenges in the rational design of CAIs.
- Emphasized the utility of computational tools in overcoming design hurdles.
Conclusions:
- CAIs are a powerful strategy for developing novel therapeutics.
- Rational design of CAIs requires integrated experimental and computational approaches.
- Further development of computational methods will accelerate CAI discovery for challenging targets.
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