Evidence map›Paper›PMID 15910874›Full record

ReviewJournal of molecular and cellular cardiology2005

ATP-sensitive K+ channel channel/enzyme multimer: metabolic gating in the heart.

Alexey E Alekseev, Denice M Hodgson, Amy B Karger, Sungjo Park, Leonid V Zingman, Andre Terzic

Abstract readReview
In one paragraph

Review in Journal of molecular and cellular cardiology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing 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

42 citing papers in PubMed.

  1. KScientific reports · 2022
    Article
  2. Article
  3. Article
  4. KATP Channels in the Cardiovascular System.Physiological reviews · 2016
    Review
  5. Article
  6. Antiobesity strategy targets energy economy safeguards.Molecular therapy : the journal of the American Society of Gene Therapy · 2015
    Article
  7. Article
  8. Article
  9. Article
  10. Observational
  11. Reinterpreting the action of ATP analogs on K(ATP) channels.The Journal of biological chemistry · 2013
    Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Cardiac ATP-sensitive K+ channel associates with the glycolytic enzyme complex.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2011
    Article
  17. Review
  18. K(ATP) channels process nucleotide signals in muscle thermogenic response.Critical reviews in biochemistry and molecular biology · 2010
    Article
  19. Human K(ATP) channelopathies: diseases of metabolic homeostasis.Pflugers Archiv : European journal of physiology · 2010
    Review
  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

6 authors.

Alexey E AlekseevDivision of Cardiovascular Diseases, Department of Medicine, Mayo Clinic College of Medicine, Rochester, MN 55905, USA. aea03@mayo.edu
Denice M Hodgson
Amy B Karger
Sungjo Park
Leonid V Zingman
Andre Terzic

Funding

CARDIOVASOLOGYT32HL007111 · NHLBI · MAYO CLINIC ROCHESTER · PI Barry A. Borlaug · 1985 to 2026
$8.7M
COUPLING OF K ATP CHANNELS WITH CARDIAC ENERGETICSR01HL064822 · NHLBI · MAYO CLINIC ROCHESTER · PI TERZIC, ANDRE · 2000 to 2007
$2.4M
NHLBI NIH HHS HL07111NHLBI NIH HHS HL64822NHLBI NIH HHS R01 HL064822NHLBI NIH HHS T32 HL007111
6 · The paper itself

Abstract

Cardiac ATP-sensitive K(+) (K(ATP)) channels, gated by cellular metabolism, are formed by association of the inwardly rectifying potassium channel Kir6.2, the potassium conducting subunit, and SUR2A, the ATP-binding cassette protein that serves as the regulatory subunit. Kir6.2 is the principal site of ATP-induced channel inhibition, while SUR2A regulates K(+) flux through adenine nucleotide binding and catalysis. The ATPase-driven conformations within the regulatory SUR2A subunit of the K(ATP) channel complex have determinate linkage with the states of the channel's pore. The probability and life-time of ATPase-induced SUR2A intermediates, rather than competitive nucleotide binding alone, defines nucleotide-dependent K(ATP) channel gating. Cooperative interaction, instead of independent contribution of individual nucleotide binding domains within the SUR2A subunit, serves a decisive role in defining K(ATP) channel behavior. Integration of K(ATP) channels with the cellular energetic network renders these channel/enzyme heteromultimers high-fidelity metabolic sensors. This vital function is facilitated through phosphotransfer enzyme-mediated transmission of controllable energetic signals. By virtue of coupling with cellular energetic networks and the ability to decode metabolic signals, K(ATP) channels set membrane excitability to match demand for homeostatic maintenance. This new paradigm in the operation of an ion channel multimer is essential in providing the basis for K(ATP) channel function in the cardiac cell, and for understanding genetic defects associated with life-threatening diseases that result from the inability of the channel complex to optimally fulfill its physiological role.

Indexed as

Action PotentialsAdenosine TriphosphateAllosteric SiteAnimalsATP-Binding Cassette TransportersCatalysisCreatine KinaseDimerizationGlycolysisHeart DiseasesHumansIonsKcnj11 ChannelKineticsModels, BiologicalMutationABCC9 protein, humanAdenosine TriphosphateATP-Binding Cassette TransportersCreatine KinaseIonsKcnj11 ChannelNucleotidesPotassiumPotassium ChannelsPotassium Channels, Inwardly RectifyingReceptors, DrugSulfonylurea Receptors

Identifiers

PMID15910874
PMCPMC2736952

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.