Evidence map›Paper›PMID 9298988›Full record

ArticleThe Journal of cell biology1997

Expression of TRPC3 in Chinese hamster ovary cells results in calcium-activated cation currents not related to store depletion.

C Zitt, A G Obukhov, C Strübing, A Zobel, F Kalkbrenner, A Lückhoff, G Schultz

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed
9.2field-weighted citation impact, top 1% 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

82 citing papers in PubMed, 256 citations in OpenAlex.

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  6. Role of Store-Operated CaBiomolecules · 2021
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  13. IPCellular and molecular life sciences : CMLS · 2017
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  14. Review
  15. PERK regulates GMolecular brain · 2016
    Article
  16. Article
  17. Article
  18. TRPC3-dependent synaptic transmission in central mammalian neurons.Journal of molecular medicine (Berlin, Germany) · 2015
    Review
  19. Calcium activates the light-dependent conductance in melanopsin-expressing photoreceptors of amphioxus.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  20. Review

22 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

7 authors at 1 institution in 1 country.

C ZittInstitut für Pharmakologie, Thielallee 69-73, Freie Universität Berlin, D-14195 Berlin, Germany.
A G Obukhov
C Strübing
A Zobel
F Kalkbrenner
A Lückhoff
G Schultz
Freie Universität Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

TRPC3 (or Htrp3) is a human member of the trp family of Ca2+-permeable cation channels. Since expression of TRPC3 cDNA results in markedly enhanced Ca2+ influx in response to stimulation of membrane receptors linked to phospholipase C (Zhu, X., J. Meisheng, M. Peyton, G. Bouley, R. Hurst, E. Stefani, and L. Birnbaumer. 1996. Cell. 85:661-671), we tested whether TRPC3 might represent a Ca2+ entry pathway activated as a consequence of depletion of intracellular calcium stores. CHO cells expressing TRPC3 after intranuclear injection of cDNA coding for TRPC3 were identified by fluorescence from green fluorescent protein. Expression of TRPC3 produced cation currents with little selectivity for Ca2+ over Na+. These currents were constitutively active, not enhanced by depletion of calcium stores with inositol-1,4,5-trisphosphate or thapsigargin, and attenuated by strong intracellular Ca2+ buffering. Ionomycin led to profound increases of currents, but this effect was strictly dependent on the presence of extracellular Ca2+. Likewise, infusion of Ca2+ into cell through the patch pipette increased TRPC3 currents. Therefore, TRPC3 is stimulated by a Ca2+-dependent mechanism. Studies on TRPC3 in inside-out patches showed cation-selective channels with 60-pS conductance and short (<2 ms) mean open times. Application of ionomycin to cells increased channel activity in cell-attached patches. Increasing the Ca2+ concentration on the cytosolic side of inside-out patches (from 0 to 1 and 30 microM), however, failed to stimulate channel activity, even in the presence of calmodulin (0.2 microM). We conclude that TRPC3 codes for a Ca2+-permeable channel that supports Ca2+-induced Ca2+-entry but should not be considered store operated.

Indexed as

Angiotensin IIAnimalsCalciumCalcium ChannelsCationsCHO CellsCloning, MolecularCricetinaeGene ExpressionIon Channel GatingIon ChannelsIonomycinIonophoresPatch-Clamp TechniquesPolymerase Chain ReactionTRPC Cation ChannelsAngiotensin IICalciumCalcium ChannelsCationsIon ChannelsIonomycinIonophoresTRPC3 cation channelTRPC Cation ChannelsVasodilator Agents

Identifiers

PMID9298988
PMCPMC2132548
OpenAlexW2013962899

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.