Evidence map›Paper›PMID 26053297›Full record

ArticleNature chemical biology2015

Structural mechanism underlying capsaicin binding and activation of the TRPV1 ion channel.

Fan Yang, Xian Xiao, Wei Cheng, Wei Yang, Peilin Yu, Zhenzhen Song, Vladimir Yarov-Yarovoy, Jie Zheng

Abstract read
In one paragraph

Article in Nature chemical biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 152 papers.

0numbers the graph read from it
0cells of the map it votes in
152citing papers in PubMed
–field-weighted citation impact
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

152 citing papers in PubMed.

  1. Trial
  2. Review
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  5. The journal of physical chemistry. B · 2026
    Article
  6. Journal of Zhejiang University. Science. B · 2026
    Review
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  15. Article
  16. Article
  17. Review
  18. Metal Ion Signaling in Biomedicine.Chemical reviews · 2025
    Review
  19. Capsaicin: beyond TRPV1.Frontiers in nutrition · 2025
    Review
  20. Article

92 more citing papers are in PubMed but not listed here.

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.

Fan Yang *Department of Physiology and Membrane Biology, University of California, Davis, California 95616, United States.
Xian Xiao *Department of Physiology and Membrane Biology, University of California, Davis, California 95616, United States.
Wei ChengInstitute of Cancer Stem Cell, Dalian Medical University, Dalian, Liaoning 116044, China.
Wei YangInstitute of Neuroscience, Key Laboratory of Medical Neurobiology of the Ministry of Health of China, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China.
Peilin YuDepartment of Toxicology, School of Public health, Zhejiang University, Hangzhou, Zhejiang 310058, China.
Zhenzhen SongDepartment of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China.
Vladimir Yarov-YarovoyDepartment of Physiology and Membrane Biology, University of California, Davis, California 95616, United States.
Jie ZhengDepartment of Physiology and Membrane Biology, University of California, Davis, California 95616, United States.

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 NS072377NINDS NIH HHS R01NS072377
6 · The paper itself

Abstract

Capsaicin bestows spiciness by activating TRPV1 channel with exquisite potency and selectivity. Although a capsaicin-bound channel structure was previously resolved by cryo-EM at 4.2- to 4.5-Å resolution, capsaicin was registered as a small electron density, reflecting neither its chemical structure nor specific ligand-channel interactions--important details required for mechanistic understanding. We obtained the missing atomic-level details by iterative computation and confirmed them by systematic site-specific functional tests. We observed that the bound capsaicin takes a 'tail-up, head-down' configuration. The vanillyl and amide groups form specific interactions to anchor its bound position, while the aliphatic tail may sample a range of conformations, making it invisible in cryo-EM images. Capsaicin stabilizes TRPV1's open state by 'pull-and-contact' interactions between the vanillyl group and the S4-S5 linker. Our study provides a structural mechanism for the agonistic function of capsaicin and its analogs, and demonstrates an effective approach to obtain atomic-level information from cryo-EM structures.

Indexed as

Amino Acid SequenceAnimalsBacterial ProteinsCapsaicinChickensCryoelectron MicroscopyGene ExpressionHEK293 CellsHumansIon Channel GatingKineticsLuminescent ProteinsMiceMolecular Docking SimulationMolecular Sequence DataPatch-Clamp TechniquesBacterial ProteinsCapsaicinLuminescent ProteinsRecombinant Fusion ProteinsTRPV1 protein, mouseTRPV Cation Channelsyellow fluorescent protein, Bacteria

Identifiers

PMID26053297
PMCPMC4472570

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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.