Evidence map›Paper›PMID 19620632›Full record

ArticleThe Journal of cell biology2009

Essential requirement for two-pore channel 1 in NAADP-mediated calcium signaling.

Eugen Brailoiu, Dev Churamani, Xinjiang Cai, Michael G Schrlau, G Cristina Brailoiu, Xin Gao, Robert Hooper, Michael J Boulware, Nae J Dun, Jonathan S Marchant and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 259 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
259citing papers in PubMed, 1 pooled it
22.9field-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

259 citing papers in PubMed, 1 synthesis or guideline pooled it, 399 citations in OpenAlex.

  1. The protein interaction networks of mucolipins and two-pore channels.Biochimica et biophysica acta. Molecular cell research · 2019
    Pooled it
  2. Allosteric switching of CaThe EMBO journal · 2026
    Article
  3. TPC1-dependent control of endosomal pH and transferrin uptake determines cellular iron status.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  4. Endosomal TPC1-mediated CaProceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  5. Article
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  8. Review
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  10. Review
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  14. Review
  15. Plasticity of the selectivity filter is essential for permeation in lysosomal TPC2 channels.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  16. The ion channels of endomembranes.Physiological reviews · 2024
    Review
  17. Whole-exome sequencing identifies cancer-associated variants of the endo-lysosomal ion transport channels in the Saudi population.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2024
    Article
  18. Review
  19. Article
  20. Article

199 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

11 authors at 5 institutions in 2 countries.

Eugen BrailoiuDepartment of Pharmacology, Temple University School of Medicine, Philadelphia, PA 19140, USA.
Dev Churamani
Xinjiang Cai
Michael G Schrlau
G Cristina Brailoiu
Xin Gao
Robert Hooper
Michael J Boulware
Nae J Dun
Jonathan S Marchant
Sandip Patel
Temple University · USUniversity College London · GBUniversity of Minnesota Medical Center · USDuke Medical Center · USUniversity of Pennsylvania · US

Funding

Functional architecture of IP3-evoked local Ca2+ signalsR01GM088790 · NIGMS · UNIVERSITY OF MINNESOTA · PI MARCHANT, JONATHAN S, SLAMA, JAMES T · 2009 to 2025
$4.7M
ACTIVITY OF BRAINSTEM NEURONSR01HL051314 · NHLBI · UNIVERSITY OF TOLEDO HEALTH SCI CAMPUS · PI DUN, NAE J · 1995 to 2010
$2.3M
Activity of Preganglionic Neurons in VitroR37NS018710 · NINDS · TEMPLE UNIV OF THE COMMONWEALTH · PI DUN, NAE J · 2003 to 2009
$2.2M
Role of nonnuclear estrogen receptor GPR30 in preganglionic vagal neuronsR01HL090804 · NHLBI · TEMPLE UNIV OF THE COMMONWEALTH · PI BRAILOIU, EUGEN · 2009 to 2012
$1.5M
ACTIVITY O PREGANGLIONIC NEURONS IN VITROR01NS018710 · NINDS · UNIVERSITY OF TOLEDO HEALTH SCI CAMPUS · PI DUN, NAE J · 1985 to 2001
$493k
Biotechnology and Biological Sciences Research Council BB/D018110/1Biotechnology and Biological Sciences Research Council BB/G013721/1NHLBI NIH HHS HL51314NHLBI NIH HHS HL90804NHLBI NIH HHS R01 HL051314NHLBI NIH HHS R01 HL090804NIGMS NIH HHS GM08879NIGMS NIH HHS R01 GM088790NINDS NIH HHS NS18710NINDS NIH HHS R01 NS018710NINDS NIH HHS R37 NS018710Wellcome TrustWellcome Trust VS/07/UCL/A7
6 · The paper itself

Abstract

Nicotinic acid adenine dinucleotide phosphate (NAADP) is a widespread and potent calcium-mobilizing messenger that is highly unusual in activating calcium channels located on acidic stores. However, the molecular identity of the target protein is unclear. In this study, we show that the previously uncharacterized human two-pore channels (TPC1 and TPC2) are endolysosomal proteins, that NAADP-mediated calcium signals are enhanced by overexpression of TPC1 and attenuated after knockdown of TPC1, and that mutation of a single highly conserved residue within a putative pore region abrogated calcium release by NAADP. Thus, TPC1 is critical for NAADP action and is likely the long sought after target channel for NAADP.

Indexed as

Amino Acid SequenceAnimalsCalcium ChannelsCalcium SignalingCells, CulturedEndosomesHumansLysosomesMolecular Sequence DataMutationNADPPhylogenySequence AlignmentTwo-Pore ChannelsCalcium ChannelsNAADPNADPTPCN1 protein, humanTPCN2 protein, humanTwo-Pore Channels

Identifiers

PMID19620632
PMCPMC2717647
OpenAlexW2112045725

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.