Cited by 199Receptor Mechanisms and SignalingNeuroscience and Neuropharmacology ResearchProtein Kinase Regulation and GTPase Signaling

Novel Allosteric Modulators of G Protein-coupled Receptors

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Gentry, Patrick R., Sexton, Patrick M., Christopoulos, Arthur·2015·Journal of Biological Chemistry

Abstract

G protein-coupled receptors (GPCRs) are allosteric proteins, because their signal transduction relies on interactions between topographically distinct, yet conformationally linked, domains. Much of the focus on GPCR allostery in the new millennium, however, has been on modes of targeting GPCR allosteric sites with chemical probes due to the potential for novel therapeutics. It is now apparent that some GPCRs possess more than one targetable allosteric site, in addition to a growing list of putative endogenous modulators. Advances in structural biology are also shedding new insights into mechanisms of allostery, although the complexities of candidate allosteric drugs necessitate rigorous biological characterization.

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  • Allosteric modulators have a desirable "ceiling of effect": once allosteric sites are occupied, no additional effects can be observed, indicating drug safety under overdose conditions.

    “Thirdly, allosteric modulators have a desirable “ceiling of effect”. Once allosteric sites are occupied, no additional effects can be observed, indicating drug safety under overdose conditions.”

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Authors
Gentry, P. R., Sexton, P. M., & Christopoulos, A.
Affiliations
Monash University (AU)
Corresponding author
Christopoulos, Arthur
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2015-08
Volume
290
Issue
32
Pages
19478-19488
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2110319068
Cited by
199
References
101
Citations by year
2026: 5 · 2025: 10 · 2024: 10 · 2023: 13 · 2022: 27 · 2021: 18 · 2020: 18 · 2019: 19 · 2018: 26 · 2017: 25 · 2016: 27 · 2015: 1
FWCI
2.58
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
Keywords
G protein-coupled receptors, allosteric modulation, allosteric site, endogenous modulators
MeSH terms
Allosteric Regulation, Allosteric Site, Humans, Ligands, Models, Molecular, Protein Binding, Structure-Activity Relationship, Drug Design, Signal Transduction, Protein Structure, Tertiary, Crystallography, X-Ray, Receptors, G-Protein-Coupled, History, 21st Century, Small Molecule Libraries

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