Evidence map›Paper›PMID 27298359›Full record

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

Rational design and validation of a vanilloid-sensitive TRPV2 ion channel.

Fan Yang, Simon Vu, Vladimir Yarov-Yarovoy, Jie Zheng

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 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
5.3field-weighted citation impact, top 4% 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

38 citing papers in PubMed, 59 citations in OpenAlex.

  1. Review
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  11. Cannabidiol sensitizes TRPV2 channels to activation by 2-APB.bioRxiv : the preprint server for biology · 2023
    Article
  12. Review
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  17. Review
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  19. Review
  20. Gating of human TRPV3 in a lipid bilayer.Nature structural & molecular biology · 2020
    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

4 authors at 1 institution in 1 country.

Fan YangDepartment of Physiology and Membrane Biology, University of California, Davis, CA 95616.
Simon VuDepartment of Physiology and Membrane Biology, University of California, Davis, CA 95616.
Vladimir Yarov-YarovoyDepartment of Physiology and Membrane Biology, University of California, Davis, CA 95616.
Jie ZhengDepartment of Physiology and Membrane Biology, University of California, Davis, CA 95616 jzheng@ucdavis.edu.
University of California, Davis · US

Funding

Molecular Mechanism of pH Regulation of TRPV1 ActivationR01NS072377 · NINDS · UNIVERSITY OF CALIFORNIA AT DAVIS · PI ZHENG, JIE · 2011 to 2015
$1.7M
NINDS NIH HHS R01 NS072377
6 · The paper itself

Abstract

Vanilloids activation of TRPV1 represents an excellent model system of ligand-gated ion channels. Recent studies using cryo-electron microcopy (cryo-EM), computational analysis, and functional quantification revealed the location of capsaicin-binding site and critical residues mediating ligand-binding and channel activation. Based on these new findings, here we have successfully introduced high-affinity binding of capsaicin and resiniferatoxin to the vanilloid-insensitive TRPV2 channel, using a rationally designed minimal set of four point mutations (F467S-S498F-L505T-Q525E, termed TRPV2_Quad). We found that binding of resiniferatoxin activates TRPV2_Quad but the ligand-induced open state is relatively unstable, whereas binding of capsaicin to TRPV2_Quad antagonizes resiniferatoxin-induced activation likely through competition for the same binding sites. Using Rosetta-based molecular docking, we observed a common structural mechanism underlying vanilloids activation of TRPV1 and TRPV2_Quad, where the ligand serves as molecular "glue" that bridges the S4-S5 linker to the S1-S4 domain to open these channels. Our analysis revealed that capsaicin failed to activate TRPV2_Quad likely due to structural constraints preventing such bridge formation. These results not only validate our current working model for capsaicin activation of TRPV1 but also should help guide the design of drug candidate compounds for this important pain sensor.

Indexed as

Binding SitesCapsaicinDiterpenesHumansLigandsMolecular Docking SimulationPoint MutationProtein DomainsTRPV Cation ChannelsCapsaicinDiterpenesLigandsresiniferatoxinTRPV1 protein, humanTRPV2 protein, humanTRPV Cation Channelscapsaicinligand gatingresiniferatoxinTRPV1TRPV2

Identifiers

PMID27298359
PMCPMC4932969
OpenAlexW2421422434

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.