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Updated: Jul 26, 2026

Measuring G-protein-coupled Receptor Signaling via Radio-labeled GTP Binding
Published on: June 9, 2017
Allosteric modulation of G protein-coupled receptors
L T May1, V A Avlani, P M Sexton
1Department of Pharmacology, University of Melbourne, Grattan St., Parkville, 3010, Victoria, Australia.
G protein-coupled receptors (GPCRs) have allosteric binding sites offering safer drug development. Advances in screening and analysis are uncovering more GPCR allosteric modulators for treating various disorders.
Area of Science:
- Pharmacology
- Molecular Biology
- Biochemistry
Background:
- G protein-coupled receptors (GPCRs) are a vast receptor superfamily and primary drug targets.
- Traditional drugs target the orthosteric site, but GPCRs also have extracellular allosteric sites.
- Allosteric modulators offer improved GPCR-subtype selectivity and safety compared to orthosteric ligands.
Purpose of the Study:
- To review the advantages of GPCR allosteric modulators in drug discovery.
- To highlight recent advances in screening and analytical techniques for detecting allosteric modulators.
- To discuss the potential of allosteric modulators in developing novel therapeutics.
Main Methods:
- Review of recent literature on GPCR allosteric modulation.
- Discussion of advances in high-throughput screening, including cell-based functional assays.
- Overview of novel analytical techniques for detecting and quantifying allosteric effects.
Main Results:
- Allosteric modulators present significant therapeutic advantages, including enhanced selectivity and safety.
- Traditional screening methods often fail to identify allosteric modulators.
- Recent advancements in high-throughput screening and analytical techniques have increased the discovery of allosteric modulators.
Conclusions:
- GPCR allosteric modulators offer a promising avenue for developing safer and more selective therapeutics.
- Advances in screening and analytical methods are crucial for identifying these novel drug candidates.
- The increased understanding and detection of allosteric modulators are expected to address the current scarcity in clinical settings and lead to new treatments.
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