Evidence map›Paper›PMID 31470595›Full record

ArticleMarine drugs2019

Extremely Potent Block of Bacterial Voltage-Gated Sodium Channels by µ-Conotoxin PIIIA.

Rocio K Finol-Urdaneta, Jeffrey R McArthur, Vyacheslav S Korkosh, Sun Huang, Denis McMaster, Robert Glavica, Denis B Tikhonov, Boris S Zhorov, Robert J French

Open access · goldAbstract read
In one paragraph

Article in Marine drugs, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.9field-weighted citation impact, top 27% 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

10 citing papers in PubMed, 14 citations in OpenAlex.

  1. In Silico Conotoxin Studies: Progress and Prospects.Molecules (Basel, Switzerland) · 2024
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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

9 authors at 3 institutions in 4 countries.

Rocio K Finol-UrdanetaDepartment of Physiology & Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada. rfinolu@uow.edu.au.ORCID 0000-0003-2157-4532
Jeffrey R McArthurIllawarra Health and Medical Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia.ORCID 0000-0002-2546-7913
Vyacheslav S KorkoshI. M. Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, Saint Petersburg 194223, Russia.ORCID 0000-0001-6362-6594
Sun HuangDepartment of Physiology & Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada.
Denis McMasterDepartment of Physiology & Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada.
Robert GlavicaDepartment of Physiology & Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada.
Denis B TikhonovI. M. Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, Saint Petersburg 194223, Russia.
Boris S ZhorovI. M. Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, Saint Petersburg 194223, Russia.
Robert J FrenchDepartment of Physiology & Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada. french@ucalgary.ca.ORCID 0000-0001-8174-026X
University of Calgary · CAInstitute of Evolutionary Physiology and Biochemistry · RUUniversity of Wollongong · AU

Funding

Natural Sciences and Engineering Research Council of Canada RGPIN-2012-418658 and RGPIN-2014-04894Russian Foundation for Basic Research 17-04-00549
6 · The paper itself

Abstract

µ-Conotoxin PIIIA, in the sub-picomolar, range inhibits the archetypal bacterial sodium channel NaChBac (NavBh) in a voltage- and use-dependent manner. Peptide µ-conotoxins were first recognized as potent components of the venoms of fish-hunting cone snails that selectively inhibit voltage-gated skeletal muscle sodium channels, thus preventing muscle contraction. Intriguingly, computer simulations predicted that PIIIA binds to prokaryotic channel NavAb with much higher affinity than to fish (and other vertebrates) skeletal muscle sodium channel (Nav 1.4). Here, using whole-cell voltage clamp, we demonstrate that PIIIA inhibits NavBac mediated currents even more potently than predicted. From concentration-response data, with [PIIIA] varying more than 6 orders of magnitude (10

Indexed as

Amino Acid SequenceAnimalsBacteriaConotoxinsConus SnailProtein BindingSodium Channel BlockersVoltage-Gated Sodium ChannelsConotoxinsSodium Channel BlockersVoltage-Gated Sodium Channelsbacterial sodium channels, prokaryotic sodium channels (NavBacs)eukaryotic sodium channels (Nav1s)voltage- and use-dependent blockvoltage-gated sodium channelsµ-conotoxin PIIIA

Identifiers

PMID31470595
PMCPMC6780087
OpenAlexW2970061330

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.