Evidence map›Paper›PMID 25453087›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2014

Structural interactions of a voltage sensor toxin with lipid membranes.

Mihaela Mihailescu, Dmitriy Krepkiy, Mirela Milescu, Klaus Gawrisch, Kenton J Swartz, Stephen White

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

32 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Special issue for Klaus Gawrisch.Biophysical journal · 2023
    Article
  5. Review
  6. Review
  7. Review
  8. Multitarget nociceptor sensitization by a promiscuous peptide from the venom of the King Baboon spider.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. 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 at 4 institutions in 1 country.

Mihaela MihailescuInstitute for Bioscience and Biotechnology Research, University of Maryland, Rockville, MD 20850; National Institute of Standards and Technology Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899;
Dmitriy KrepkiyMolecular Physiology and Biophysics Section, Porter Neuroscience Research Center, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892;
Mirela MilescuMolecular Physiology and Biophysics Section, Porter Neuroscience Research Center, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892; Biology Division, University of Missouri, Columbia, MO 65211;
Klaus GawrischLaboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892; and.
Kenton J SwartzMolecular Physiology and Biophysics Section, Porter Neuroscience Research Center, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892; swartzk@ninds.nih.gov Stephen.white@uci.edu.
Stephen WhiteDepartment of Physiology and Biophysics, University of California, Irvine, CA 92697 swartzk@ninds.nih.gov Stephen.white@uci.edu.
National Institutes of Health · USNational Institute of Neurological Disorders and Stroke · USNIST Center for Neutron Research · USUniversity of California, Irvine · US

Funding

Gating mechanisms and pharmacology of voltage-activated ion channelsZIANS002945 · NINDS · NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE · PI SWARTZ, KENTON · 2009 to 2025
$44.2M
NMR Investigations Of Cell Membrane StructureZIAAA000003 · NIAAA · NATIONAL INSTITUTE ON ALCOHOL ABUSE AND ALCOHOLISM · PI GAWRISCH, KLAUS · 2009 to 2020
$23.2M
Project 3: Structural Studies of Voltage-Gated Potassium Channels as FunctionP01GM086685 · NIGMS · UNIVERSITY OF CALIFORNIA-IRVINE · PI WORCESTER, DAVID · 2009 to 2013
$6.7M
Membrane Protein Folding and AssemblyR01GM074637 · NIGMS · UNIVERSITY OF CALIFORNIA-IRVINE · PI WHITE, STEPHEN H. · 2006 to 2020
$4.5M
Intramural NIH HHSNIGMS NIH HHS GM74637NIGMS NIH HHS GM86685NIGMS NIH HHS P01 GM086685NIGMS NIH HHS R01 GM074637
6 · The paper itself

Abstract

Protein toxins from tarantula venom alter the activity of diverse ion channel proteins, including voltage, stretch, and ligand-activated cation channels. Although tarantula toxins have been shown to partition into membranes, and the membrane is thought to play an important role in their activity, the structural interactions between these toxins and lipid membranes are poorly understood. Here, we use solid-state NMR and neutron diffraction to investigate the interactions between a voltage sensor toxin (VSTx1) and lipid membranes, with the goal of localizing the toxin in the membrane and determining its influence on membrane structure. Our results demonstrate that VSTx1 localizes to the headgroup region of lipid membranes and produces a thinning of the bilayer. The toxin orients such that many basic residues are in the aqueous phase, all three Trp residues adopt interfacial positions, and several hydrophobic residues are within the membrane interior. One remarkable feature of this preferred orientation is that the surface of the toxin that mediates binding to voltage sensors is ideally positioned within the lipid bilayer to favor complex formation between the toxin and the voltage sensor.

Indexed as

AnimalsCell MembraneIon ChannelsLipid BilayersMagnetic Resonance SpectroscopyMultiprotein ComplexesNeutron DiffractionSpectrometry, FluorescenceSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationSpider VenomsIon ChannelsLipid BilayersMultiprotein ComplexesSpider Venomsmembrane structureneutron diffractiontoxin–membrane interactionvoltage-activated ion channelvoltage sensor toxin

Identifiers

PMID25453087
PMCPMC4273406
OpenAlexW1973314648

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.