Evidence map›Paper›PMID 25014760›Full record

ArticleNature communications2014

A distinct sodium channel voltage-sensor locus determines insect selectivity of the spider toxin Dc1a.

Niraj S Bende, Sławomir Dziemborowicz, Mehdi Mobli, Volker Herzig, John Gilchrist, Jordan Wagner, Graham M Nicholson, Glenn F King, Frank Bosmans

Open access · bronzeAbstract read
In one paragraph

Article in Nature communications, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

36 citing papers in PubMed, 81 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. A structural atlas of druggable sites on NaChannels (Austin, Tex.) · 2024
    Review
  9. Review
  10. Article
  11. Structural mapping of NaNature communications · 2023
    Article
  12. Article
  13. Article
  14. Animal Venoms-Curse or Cure?Biomedicines · 2021
    Article
  15. Article
  16. Review
  17. Structural venomics reveals evolution of a complex venom by duplication and diversification of an ancient peptide-encoding gene.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  18. Article
  19. Article
  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

9 authors at 4 institutions in 2 countries.

Niraj S BendeInstitute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland QLD 4072, Australia.
Sławomir DziemborowiczSchool of Medical and Molecular Biosciences, University of Technology, Sydney, New South Wales 2007, Australia.
Mehdi MobliCentre for Advanced Imaging, The University of Queensland, St Lucia, Queensland QLD 4072, Australia.
Volker HerzigInstitute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland QLD 4072, Australia.
John GilchristDepartment of Physiology, School of Medicine, Johns Hopkins University, Baltimore, Maryland 21205, USA.
Jordan WagnerDepartment of Physiology, School of Medicine, Johns Hopkins University, Baltimore, Maryland 21205, USA.
Graham M NicholsonSchool of Medical and Molecular Biosciences, University of Technology, Sydney, New South Wales 2007, Australia.
Glenn F KingInstitute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland QLD 4072, Australia.
Frank Bosmans1] Department of Physiology, School of Medicine, Johns Hopkins University, Baltimore, Maryland 21205, USA [2] Solomon H. Snyder Department of Neuroscience, School of Medicine, Johns Hopkins University, Baltimore, Maryland 21205, USA.
University of Queensland · AUJohns Hopkins University · USUniversity of Technology Sydney · AUJohns Hopkins Medicine · US

Funding

BIOCHEMISTRY, CELLULAR AND MOLECULAR BIOLOGY PROGRAMT32GM007445 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI GREEN, RACHEL · 1985 to 2021
$24.1M
The influence of beta-subunits and sphingomyelin on sodium channel functionR00NS073797 · NINDS · JOHNS HOPKINS UNIVERSITY · PI BOSMANS, FRANK GERT WERNER · 2012 to 2014
$730k
NIGMS NIH HHS T32 GM007445NINDS NIH HHS R00 NS073797NINDS NIH HHS R00NS073797
6 · The paper itself

Abstract

β-Diguetoxin-Dc1a (Dc1a) is a toxin from the desert bush spider Diguetia canities that incapacitates insects at concentrations that are non-toxic to mammals. Dc1a promotes opening of German cockroach voltage-gated sodium (Nav) channels (BgNav1), whereas human Nav channels are insensitive. Here, by transplanting commonly targeted S3b-S4 paddle motifs within BgNav1 voltage sensors into Kv2.1, we find that Dc1a interacts with the domain II voltage sensor. In contrast, Dc1a has little effect on sodium currents mediated by PaNav1 channels from the American cockroach even though their domain II paddle motifs are identical. When exploring regions responsible for PaNav1 resistance to Dc1a, we identified two residues within the BgNav1 domain II S1-S2 loop that when mutated to their PaNav1 counterparts drastically reduce toxin susceptibility. Overall, our results reveal a distinct region within insect Nav channels that helps determine Dc1a sensitivity, a concept that will be valuable for the design of insect-selective insecticides.

Indexed as

Amino Acid SequenceAnimalsCockroachesInsecticidesMolecular Sequence DataSpecies SpecificitySpidersSpider VenomsVoltage-Gated Sodium ChannelsInsecticidesSpider VenomsVoltage-Gated Sodium Channels

Identifiers

PMID25014760
PMCPMC4115291
OpenAlexW2134143236

What OpenQuestion holds

Textmetadata
LicenceTDM
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.