Evidence map›Paper›PMID 19716479›Full record

ArticleChemistry & biology2009

Hoiamide a, a sodium channel activator of unusual architecture from a consortium of two papua new Guinea cyanobacteria.

Alban Pereira, Zhengyu Cao, Thomas F Murray, William H Gerwick

Erratum issuedAbstract read
In one paragraph

Article in Chemistry & biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 39 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

39 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  14. Natural Cyclopeptides as Anticancer Agents in the Last 20 Years.International journal of molecular sciences · 2021
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4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

4 authors.

Alban PereiraCenter for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, 92093, USA.
Zhengyu Cao
Thomas F Murray
William H Gerwick

Funding

Neurotoxins from Marine Algae and CyanobacteriaR01NS053398 · NINDS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GERWICK, WILLIAM HENRY, MURRAY, THOMAS F · 2005 to 2015
$4.3M
NINDS NIH HHS NS053398NINDS NIH HHS R01 NS053398
6 · The paper itself

Abstract

Hoiamide A, a novel bioactive cyclic depsipeptide, was isolated from an environmental assemblage of the marine cyanobacteria Lyngbya majuscula and Phormidium gracile collected in Papua New Guinea. This stereochemically complex metabolite possesses a highly unusual structure, which likely derives from a mixed peptide-polyketide biogenetic origin, and includes a peptidic section featuring an acetate extended and S-adenosyl methionine modified isoleucine moiety, a triheterocyclic fragment bearing two alpha-methylated thiazolines and one thiazole, and a highly oxygenated and methylated C15-polyketide substructure. Pure hoiamide A potently inhibited [(3)H]batrachotoxin binding to voltage-gated sodium channels (IC(50) = 92.8 nM), activated sodium influx (EC(50) = 2.31 microM) in mouse neocortical neurons, and exhibited modest cytotoxicity to cancer cells. Further investigation revealed that hoiamide A is a partial agonist of site 2 on the voltage-gated sodium channel.

Indexed as

Sodium Channel AgonistsAnimalsBatrachotoxinsBinding SitesCyanobacteriaDepsipeptidesMiceNeuronsPapua New GuineaReceptors, N-Methyl-D-AspartateSodiumSodium ChannelsStereoisomerismBatrachotoxinsDepsipeptideshoiamide AReceptors, N-Methyl-D-AspartateSodiumSodium Channel AgonistsSodium Channels

Identifiers

PMID19716479
PMCPMC2763540

What OpenQuestion holds

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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.