Evidence map›Paper›PMID 20693293›Full record

ArticleThe Journal of physiology2010

Modulation of single-channel properties of TRPV1 by phosphorylation.

Milena Studer, Peter A McNaughton

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

48 citing papers in PubMed, 83 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Diacylglycerol Activates theInternational journal of molecular sciences · 2023
    Article
  5. A journey from molecule to physiology andFrontiers in pharmacology · 2023
    Review
  6. Article
  7. PKC regulation of ion channels: The involvement of PIPThe Journal of biological chemistry · 2022
    Review
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Bone Metastasis Pain, from the Bench to the Bedside.International journal of molecular sciences · 2019
    Review
  17. TRPV1 pore turret dictates distinct DkTx and capsaicin gating.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  18. Review
  19. Article
  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

2 authors at 1 institution in 1 country.

Milena StuderDepartment of Pharmacology, University of Cambridge, Cambridge CB2 1PD, UK.
Peter A McNaughton
University of Cambridge · GB

Funding

Biotechnology and Biological Sciences Research Council BB/C003217/1Biotechnology and Biological Sciences Research Council BB/F003072/1
6 · The paper itself

Abstract

Activation of TRPV1, the heat and capsaicin receptor, is known to be promoted by phosphorylation, but the molecular details are unclear. In the present study we recorded from single TRPV1 ion channels using the cell-attached patch clamp technique. The influence of capsaicin concentration on the time constants of open and closed states demonstrates the existence of at least four closed and three open states, and shows that channel opening can occur from partially liganded states. Activation of protein kinase C (PKC) promotes channel opening in some channels but not others, consistent with some channels being inaccessible to the kinase. The changes in open and closed state time constants following activation of PKC are equivalent to an increased affinity of capsaicin binding, but other arguments suggest that channel opening must be potentiated by downstream changes in channel activation rather than by a direct action of phosphorylation on the capsaicin binding site. Mutation of functionally important PKC phosphorylation sites on TRPV1, or application of staurosporine, a broad-spectrum kinase inhibitor, completely inhibited the effect of PKC in enhancing channel open time. Staurosporine also inhibited channel activity in the absence of overt PKC activation, showing that TRPV1 is partially phosphorylated at rest. This study elucidates the mechanism by which phosphorylation by PKC potentiates the activation of single TRPV1 ion channels.

Indexed as

AlgorithmsCapsaicinDose-Response Relationship, DrugElectrophysiological PhenomenaEnzyme ActivationHEK293 CellsHumansIon Channel GatingKineticsNerve Growth FactorPatch-Clamp TechniquesPhosphorylationProtein Kinase CProtein Kinase InhibitorsStaurosporineTetradecanoylphorbol AcetateCapsaicincapsazepineNerve Growth FactorProtein Kinase CProtein Kinase InhibitorsStaurosporineTetradecanoylphorbol AcetateTRPV1 protein, humanTRPV Cation Channels

Identifiers

PMID20693293
PMCPMC2998224
OpenAlexW1591755406

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.