Evidence map›Paper›PMID 14502427›Full record

ReviewThe Journal of membrane biology2003

Properties, expression and potential roles of cardiac K+ channel accessory subunits: MinK, MiRPs, KChIP, and KChAP.

M Pourrier, G Schram, S Nattel

Abstract readComparative StudyReview
PubMed Publisher
In one paragraph

Review in The Journal of membrane biology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed.

  1. Article
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  5. Trafficking of an endogenous potassium channel in adult ventricular myocytes.American journal of physiology. Cell physiology · 2012
    Article
  6. Article
  7. Role of the ubiquitin system in regulating ion transport.Pflugers Archiv : European journal of physiology · 2011
    Article
  8. Properties of WT and mutant hERG K(+) channels expressed in neonatal mouse cardiomyocytes.American journal of physiology. Heart and circulatory physiology · 2010
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
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  15. Article
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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

3 authors.

M PourrierResearch Center, Montreal Heart Institute, Montreal, Quebec, Canada H1T 1C8.
G Schram
S Nattel

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Over the past 10 years, cDNAs encoding a wide range of pore-forming K(+)-channel alpha-subunits have been cloned and found to result in currents with many properties of endogenous cardiac K(+) channels upon homomeric expression in heterologous systems. However, a variety of remaining discrepancies have led to a search for other subunits that might be involved in the formation of native channels. Over the past few years, a series of accessory subunits has been discovered that modify current properties upon coexpression with alpha-subunits. One of these, the minimal K(+)-channel subunit minK, is essential for formation of the cardiac slow delayed-rectifier K(+) current, I(Ks), and may also interact in functionally important ways with other alpha-subunits. Another, the K(+)-channel interacting protein KChIP appears critical in formation of native transient outward current (I(to)) channels. The roles of 2 other accessory subunits, the minK-related peptide MiRP and the K(+)-channel accessory protein, KChAP, remain unclear. This article reviews the available knowledge regarding the accessory subunits minK, MiRP, KChIP and KChAP, dealing with their structure, effects on currents carried by coexpressed alpha-subunits, expression in cardiac tissues and potential physiological function. On the basis of the available information, we attempt to assess the potential involvement of these accessory K(+)-channel subunits in cardiac pathophysiology and in developing new therapeutic approaches.

Indexed as

Potassium ChannelsAmino Acid SequenceAnimalsAnti-Arrhythmia AgentsHeart Conduction SystemHumansIon Channel GatingMiceMolecular Sequence DataPotassiumProtein SubunitsRatsSequence Homology, Amino AcidStructure-Activity RelationshipAnti-Arrhythmia AgentsPotassiumPotassium ChannelsProtein Subunits

Identifiers

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.