Evidence map›Paper›PMID 21357749›Full record

ArticleThe Journal of cell biology2011

Cdk-mediated phosphorylation of the Kvβ2 auxiliary subunit regulates Kv1 channel axonal targeting.

Hélène Vacher, Jae-Won Yang, Oscar Cerda, Amapola Autillo-Touati, Bénédicte Dargent, James S Trimmer

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 2011. 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
4.0field-weighted citation impact, top 5% 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

42 citing papers in PubMed, 63 citations in OpenAlex.

  1. Article
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  13. Neurodevelopmental mutation of giant ankyrin-G disrupts a core mechanism for axon initial segment assembly.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  14. Article
  15. Axon initial segments: structure, function, and disease.Annals of the New York Academy of Sciences · 2018
    Review
  16. The Axon Initial Segment: An Updated Viewpoint.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    Review
  17. KFrontiers in physiology · 2018
    Article
  18. Article
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  20. Review
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 at 3 institutions in 2 countries.

Hélène VacherDepartment of Neurobiology, Physiology, and Behavior, College of Biological Sciences, University of California, Davis, Davis, CA 95616, USA. helene.vacher@univmed.fr
Jae-Won Yang
Oscar Cerda
Amapola Autillo-Touati
Bénédicte Dargent
James S Trimmer
University of California, Davis · USInstitut de Neurobiologie de la Méditerranée · FRInserm · FR

Funding

K+ CHANNEL ALPHA AND BETA SUBUNIT INTERACTIONSR37NS034383 · NINDS · UNIVERSITY OF CALIFORNIA DAVIS · PI TRIMMER, JAMES S · 2000 to 2006
$2.6M
K+ Channel Alpha & Beta Subunit InteractionR01NS034383 · NINDS · UNIVERSITY OF CALIFORNIA AT DAVIS · PI TRIMMER, JAMES S · 1995 to 2012
$1.7M
NINDS NIH HHS NS34383NINDS NIH HHS R01 NS034383NINDS NIH HHS R37 NS034383
6 · The paper itself

Abstract

Kv1 channels are concentrated at specific sites in the axonal membrane, where they regulate neuronal excitability. Establishing these distributions requires regulated dissociation of Kv1 channels from the neuronal trafficking machinery and their subsequent insertion into the axonal membrane. We find that the auxiliary Kvβ2 subunit of Kv1 channels purified from brain is phosphorylated on serine residues 9 and 31, and that cyclin-dependent kinase (Cdk)-mediated phosphorylation at these sites negatively regulates the interaction of Kvβ2 with the microtubule plus end-tracking protein EB1. Endogenous Cdks, EB1, and Kvβ2 phosphorylated at serine 31 are colocalized in the axons of cultured hippocampal neurons, with enrichment at the axon initial segment (AIS). Acute inhibition of Cdk activity leads to intracellular accumulation of EB1, Kvβ2, and Kv1 channel subunits within the AIS. These studies reveal a new regulatory mechanism for the targeting of Kv1 complexes to the axonal membrane through the reversible Cdk phosphorylation-dependent binding of Kvβ2 to EB1.

Indexed as

Amino Acid SequenceAnimalsAxonsChromatography, LiquidCyclin-Dependent KinasesHippocampusHumansMiceMicrotubule-Associated ProteinsMicrotubulesMolecular Sequence DataNeuronsPhosphorylationPotassium Channels, Voltage-GatedProtein SubunitsProtein TransportCyclin-Dependent KinasesKcnab2 protein, ratMicrotubule-Associated ProteinsPotassium Channels, Voltage-GatedProtein SubunitsSerineShaker Superfamily of Potassium Channels

Identifiers

PMID21357749
PMCPMC3051814
OpenAlexW2069166120

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.