Evidence map›Paper›PMID 27601651›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2016

Accelerated structure-based design of chemically diverse allosteric modulators of a muscarinic G protein-coupled receptor.

Yinglong Miao, Dahlia Anne Goldfeld, Ee Von Moo, Patrick M Sexton, Arthur Christopoulos, J Andrew McCammon, Celine Valant

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
7.8field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

46 citing papers in PubMed, 90 citations in OpenAlex.

  1. Review
  2. Visualizing agonist-induced M2 receptor activation regulated by aromatic ring dynamics.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  11. Selective inhibitors of SARM1 targeting an allosteric cysteine in the autoregulatory ARM domain.Proceedings of the National Academy of Sciences of the United States of America · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Yinglong MiaoHoward Hughes Medical Institute, University of California at San Diego, La Jolla, CA 92093; Department of Pharmacology, University of California at San Diego, La Jolla, CA 92093; yimiao@ucsd.edu jmccammon@ucsd.edu celine.valant@monash.edu.
Dahlia Anne GoldfeldDepartment of Pharmacology, University of California at San Diego, La Jolla, CA 92093;
Ee Von MooDrug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville VIC 3052, Australia;
Patrick M SextonDrug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville VIC 3052, Australia;
Arthur ChristopoulosDrug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville VIC 3052, Australia;
J Andrew McCammonHoward Hughes Medical Institute, University of California at San Diego, La Jolla, CA 92093; Department of Pharmacology, University of California at San Diego, La Jolla, CA 92093; Department of Chemistry and Biochemistry, University of California at San Diego, La Jolla, CA 92093 yimiao@ucsd.edu jmccammon@ucsd.edu celine.valant@monash.edu.
Celine ValantDrug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville VIC 3052, Australia; yimiao@ucsd.edu jmccammon@ucsd.edu celine.valant@monash.edu.
Monash University · AUHoward Hughes Medical Institute · USUniversity of California, San Diego · US

Funding

National Biomedical Computation Resource - Competitive Revision SupplementP41GM103426 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI AMARO, ROMMIE E · 2012 to 2019
$14.0M
THEORY OF BIOMOLECULAR DIFFUSIONR01GM031749 · NIGMS · UNIVERSITY OF HOUSTON · PI HUBER, GARY ALEXANDER, MCCAMMON, JAMES ANDREW · 1985 to 2022
$7.8M
Howard Hughes Medical InstituteNIGMS NIH HHS P41 GM103426NIGMS NIH HHS R01 GM031749
6 · The paper itself

Abstract

Design of ligands that provide receptor selectivity has emerged as a new paradigm for drug discovery of G protein-coupled receptors, and may, for certain families of receptors, only be achieved via identification of chemically diverse allosteric modulators. Here, the extracellular vestibule of the M2 muscarinic acetylcholine receptor (mAChR) is targeted for structure-based design of allosteric modulators. Accelerated molecular dynamics (aMD) simulations were performed to construct structural ensembles that account for the receptor flexibility. Compounds obtained from the National Cancer Institute (NCI) were docked to the receptor ensembles. Retrospective docking of known ligands showed that combining aMD simulations with Glide induced fit docking (IFD) provided much-improved enrichment factors, compared with the Glide virtual screening workflow. Glide IFD was thus applied in receptor ensemble docking, and 38 top-ranked NCI compounds were selected for experimental testing. In [(3)H]N-methylscopolamine radioligand dissociation assays, approximately half of the 38 lead compounds altered the radioligand dissociation rate, a hallmark of allosteric behavior. In further competition binding experiments, we identified 12 compounds with affinity of ≤30 μM. With final functional experiments on six selected compounds, we confirmed four of them as new negative allosteric modulators (NAMs) and one as positive allosteric modulator of agonist-mediated response at the M2 mAChR. Two of the NAMs showed subtype selectivity without significant effect at the M1 and M3 mAChRs. This study demonstrates an unprecedented successful structure-based approach to identify chemically diverse and selective GPCR allosteric modulators with outstanding potential for further structure-activity relationship studies.

Indexed as

Structure-Activity RelationshipAllosteric RegulationAllosteric SiteAnimalsBinding, CompetitiveCHO CellsCricetulusHumansKineticsLeadLigandsMolecular Docking SimulationMolecular Dynamics SimulationProtein ConformationRadioligand AssayReceptor, Muscarinic M1LeadLigandsReceptor, Muscarinic M1Receptor, Muscarinic M2Receptor, Muscarinic M3affinityallosteric modulatorscooperativityensemble dockingGPCR

Identifiers

PMID27601651
PMCPMC5035859
OpenAlexW2520646257

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.