Evidence map›Paper›PMID 23598339›Full record

ArticleNature2013

Gating of the TrkH ion channel by its associated RCK protein TrkA.

Yu Cao, Yaping Pan, Hua Huang, Xiangshu Jin, Elena J Levin, Brian Kloss, Ming Zhou

Abstract read
In one paragraph

Article in Nature, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

63 citing papers in PubMed, 99 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. TrkA ofMicrobiology (Reading, England) · 2025
    Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Bacterial cell volume regulation and the importance of cyclic di-AMP.Microbiology and molecular biology reviews : MMBR · 2024
    Review
  10. Structure and mechanism of the KNature communications · 2024
    Article
  11. The polyextremophileApplied and environmental microbiology · 2024
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Review

3 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 4 institutions in 2 countries.

Yu CaoDepartment of Physiology & Cellular Biophysics, College of Physicians and Surgeons, Columbia University, 630 West 168th Street, New York, New York 10032, USA.
Yaping Pan
Hua Huang
Xiangshu Jin
Elena J Levin
Brian Kloss
Ming Zhou
Columbia University · USBaylor College of Medicine · USNational Institute of Biological Sciences, Beijing · CNNew York Structural Biology Center · US

Funding

Sub 9 at AECMU54GM075026 · NIGMS · NEW YORK STRUCTURAL BIOLOGY CENTER · PI HUNT, JOHN FRANCIS · 2005 to 2009
$16.8M
Structural Genomics on Membrane ProteinsU54GM095315 · NIGMS · NEW YORK STRUCTURAL BIOLOGY CENTER · PI ROST, BURKHARD · 2010 to 2014
$15.2M
Structural mechanism of K channel modulation by cellular redox stateR01HL086392 · NHLBI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI ZHOU, MING · 2006 to 2018
$3.9M
Structure and function of urea transportersR01DK088057 · NIDDK · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI ZHOU, MING · 2010 to 2014
$1.7M
Structure and Function of a Phosphorylation Coupled Saccharide TransporterR01GM098878 · NIGMS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI ZHOU, MING · 2011 to 2014
$1.2M
NHLBI NIH HHS HL086392NHLBI NIH HHS R01 HL086392NIDDK NIH HHS DK088057NIDDK NIH HHS R01 DK088057NIGMS NIH HHS GM098878NIGMS NIH HHS R01 GM098878NIGMS NIH HHS U54 GM075026NIGMS NIH HHS U54 GM095315NIGMS NIH HHS U54GM095315
6 · The paper itself

Abstract

TrkH belongs to a superfamily of K(+) transport proteins required for growth of bacteria in low external K(+) concentrations. The crystal structure of TrkH from Vibrio parahaemolyticus showed that TrkH resembles a K(+) channel and may have a gating mechanism substantially different from K(+) channels. TrkH assembles with TrkA, a cytosolic protein comprising two RCK (regulate the conductance of K(+)) domains, which are found in certain K(+) channels and control their gating. However, fundamental questions on whether TrkH is an ion channel and how it is regulated by TrkA remain unresolved. Here we show single-channel activity of TrkH that is upregulated by ATP via TrkA. We report two structures of the tetrameric TrkA ring, one in complex with TrkH and one in isolation, in which the ring assumes two markedly different conformations. These results suggest a mechanism for how ATP increases TrkH activity by inducing conformational changes in TrkA.

Indexed as

Ion Channel GatingAdenosine DiphosphateAdenosine TriphosphateBacterial ProteinsCrystallography, X-RayElectric ConductivityIon TransportModels, MolecularProtein FoldingProtein Structure, QuaternaryProtein Structure, TertiaryVibrio parahaemolyticusAdenosine DiphosphateAdenosine TriphosphateBacterial Proteins

Identifiers

PMID23598339
PMCPMC3726529
OpenAlexW1996002552

What OpenQuestion holds

Textmetadata
LicenceTDM
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.