Evidence map›Paper›PMID 28515494›Full record

ArticleScientific reports2017

Ligand chain length drives activation of lipid G protein-coupled receptors.

Anastassia Troupiotis-Tsaïlaki, Julian Zachmann, Inés González-Gil, Angel Gonzalez, Silvia Ortega-Gutiérrez, Maria L López-Rodríguez, Leonardo Pardo, Cedric Govaerts

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

24 citing papers in PubMed, 45 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Review
  5. The Leu/ValJournal of chemical information and modeling · 2023
    Article
  6. Structural insights into sphingosine-1-phosphate receptor activation.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  7. Article
  8. Serine Palmitoyltransferase Subunit 3 and Metabolic Diseases.Advances in experimental medicine and biology · 2022
    Review
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Frontiers in pharmacology · 2020
    Article
  18. Article
  19. Review
  20. Article
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

8 authors at 3 institutions in 2 countries.

Anastassia Troupiotis-TsaïlakiLaboratoire de Structure et Fonction des Membranes Biologiques, Université Libre de Bruxelles, Brussels, Belgium.
Julian ZachmannLaboratori de Medicina Computacional, Unitat de Bioestadística, Facultat de Medicina, Universitat Autònoma de Barcelona, 08193, Bellaterra, Barcelona, Spain.
Inés González-GilDepartamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040, Madrid, Spain.
Angel GonzalezLaboratori de Medicina Computacional, Unitat de Bioestadística, Facultat de Medicina, Universitat Autònoma de Barcelona, 08193, Bellaterra, Barcelona, Spain.
Silvia Ortega-GutiérrezDepartamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040, Madrid, Spain.
Maria L López-RodríguezDepartamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040, Madrid, Spain.
Leonardo PardoLaboratori de Medicina Computacional, Unitat de Bioestadística, Facultat de Medicina, Universitat Autònoma de Barcelona, 08193, Bellaterra, Barcelona, Spain. Leonardo.Pardo@uab.cat.
Cedric GovaertsLaboratoire de Structure et Fonction des Membranes Biologiques, Université Libre de Bruxelles, Brussels, Belgium. Cedric.Govaerts@ulb.ac.be.
Universidad Complutense de Madrid · ESUniversitat Autònoma de Barcelona · ESUniversité Libre de Bruxelles · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sphingosine-1-phosphate (S1P) is a lipid mediator that can activate five cell membrane G protein-coupled receptors (GPCRs) which carry a variety of essential functions and are promising drug targets. S1P is composed of a polar zwitterionic head-group and a hydrophobic alkyl chain. This implies an activation mechanism of its cognate receptor that must be significantly different from what is known for prototypical GPCRs (ie receptor to small hydrophilic ligands). Here we aim to identify the structural features responsible for S1P agonism by combining molecular dynamics simulations and functional assays using S1P analogs of different alkyl chain lengths. We propose that high affinity binding involves polar interactions between the lipid head-group and receptor side chains while activation is due to hydrophobic interactions between the lipid tail and residues in a distinct binding site. We observe that ligand efficacy is directly related to alkyl chain length but also varies with receptor subtypes in correlation with the size of this binding pocket. Integrating experimental and computational data, we propose an activation mechanism for the S1P receptors involving agonist-induced conformational events that are conserved throughout class A GPCRs.

Indexed as

AnimalsBinding SitesCHO CellsCricetulusLigandsLipid MetabolismLipidsLysophospholipidsMolecular ConformationMolecular Docking SimulationMolecular Dynamics SimulationMolecular StructureProtein BindingReceptors, G-Protein-CoupledReceptors, LysosphingolipidSphingosineLigandsLipidsLysophospholipidsReceptors, G-Protein-CoupledReceptors, LysosphingolipidSphingosinesphingosine 1-phosphate

Identifiers

PMID28515494
PMCPMC5435731
OpenAlexW2613379785

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

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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.