Evidence map›Paper›PMID 10512815›Full record

ArticleBiophysical journal1999

Voltage-dependent sodium channel function is regulated through membrane mechanics.

A Shcherbatko, F Ono, G Mandel, P Brehm

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

48 citing papers in PubMed, 89 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Review
  5. Review
  6. Dissection of the structure-function relationship of NaProceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  7. Article
  8. Article
  9. Mechanosensation in traumatic brain injury.Neurobiology of disease · 2021
    Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Biophysical implications of lipid bilayer rheometry for mechanosensitive channels.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
  16. Stiffened lipid platforms at molecular force foci.Proceedings of the National Academy of Sciences of the United States of America · 2013
    Review
  17. Article
  18. Mechanistic basis for low threshold mechanosensitivity in voltage-dependent K+ channels.Proceedings of the National Academy of Sciences of the United States of America · 2012
    Article
  19. Article
  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

4 authors at 2 institutions in 1 country.

A ShcherbatkoDepartment of Neurobiology and Behavior, State University of New York at Stony Brook, Stony Brook, New York 11794 USA. ashcherb@brain.neurobio.sunysb.edu
F Ono
G Mandel
P Brehm
State University of New York · USStony Brook University · US

Funding

REGULATION OF THE PERIPHERAL NERVE SPECIFIC SODIUM CHANNEL, PN1P01NS034375 · NINDS · STATE UNIVERSITY NEW YORK STONY BROOK · PI HALEGOUA, SIMON · 1996 to 2000
$1.0M
NINDS NIH HHS NS-34375
6 · The paper itself

Abstract

Cut-open recordings from Xenopus oocytes expressing either nerve (PN1) or skeletal muscle (SkM1) Na(+) channel alpha subunits revealed slow inactivation onset and recovery kinetics of inward current. In contrast, recordings using the macropatch configuration resulted in an immediate negative shift in the voltage-dependence of inactivation and activation, as well as time-dependent shifts in kinetics when compared to cut-open recordings. Specifically, a slow transition from predominantly slow onset and recovery to exclusively fast onset and fast recovery from inactivation occurred. The shift to fast inactivation was accelerated by patch excision and by agents that disrupted microtubule formation. Application of positive pressure to cell-attached macropatch electrodes prevented the shift in kinetics, while negative pressure led to an abrupt shift to fast inactivation. Simultaneous electrophysiological recording and video imaging of the cell-attached patch membrane revealed that the pressure-induced shift to fast inactivation coincided with rupture of sites of membrane attachment to cytoskeleton. These findings raise the possibility that the negative shift in voltage-dependence and the fast kinetics observed normally for endogenous Na(+) channels involve mechanical destabilization. Our observation that the beta1 subunit causes similar changes in function of the Na(+) channel alpha subunit suggests that beta1 may act through interaction with cytoskeleton.

Indexed as

Ion Channel GatingAnimalsCell MembraneCytoskeletonElectric ConductivityFemaleHumansKineticsMicroelectrodesMicroscopy, VideoMuscle, SkeletalNeuronsNocodazoleOocytesPatch-Clamp TechniquesPhysical StimulationNocodazoleSodium Channels

Identifiers

PMID10512815
PMCPMC1300476
OpenAlexW1987223530

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.