Evidence map›Paper›PMID 34094462›Full record

ArticleChemical science2020

Aryl urea substituted fatty acids: a new class of protonophoric mitochondrial uncoupler that utilises a synthetic anion transporter.

Tristan Rawling, Hugo MacDermott-Opeskin, Ariane Roseblade, Curtis Pazderka, Callum Clarke, Kirsi Bourget, Xin Wu, William Lewis, Benjamin Noble, Philip A Gale and 3 more

Open access · diamondAbstract read
In one paragraph

Article in Chemical science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

12 citing papers in PubMed, 27 citations in OpenAlex.

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  10. Recent Advances in Bioactive Artificial Ionophores.Chembiochem : a European journal of chemical biology · 2021
    Review
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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

13 authors at 3 institutions in 2 countries.

Tristan RawlingSchool of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney Sydney NSW 2007 Australia Tristan.Rawling@uts.edu.a +61-2-9514-7956.ORCID https://orcid.org/0000-0002-6624-6586
Hugo MacDermott-OpeskinResearch School of Chemistry, College of Science, The Australian National University Canberra ACT 0200 Australia.ORCID https://orcid.org/0000-0002-7393-7457
Ariane RosebladeSchool of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney Sydney NSW 2007 Australia Tristan.Rawling@uts.edu.a +61-2-9514-7956.
Curtis PazderkaSchool of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney Sydney NSW 2007 Australia Tristan.Rawling@uts.edu.a +61-2-9514-7956.
Callum ClarkeSchool of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney Sydney NSW 2007 Australia Tristan.Rawling@uts.edu.a +61-2-9514-7956.
Kirsi BourgetDiscipline of Pharmacology, School of Medical Sciences, University of Sydney Sydney NSW 2006 Australia.
Xin WuSchool of Chemistry, University of Sydney Sydney NSW 2006 Australia.
William LewisSchool of Chemistry, University of Sydney Sydney NSW 2006 Australia.
Benjamin NobleResearch School of Chemistry, College of Science, The Australian National University Canberra ACT 0200 Australia.
Philip A GaleSchool of Chemistry, University of Sydney Sydney NSW 2006 Australia.ORCID https://orcid.org/0000-0001-9751-4910
Megan L O'MaraResearch School of Chemistry, College of Science, The Australian National University Canberra ACT 0200 Australia.
Charles CranfieldSchool of Life Sciences, Faculty of Science, University of Technology Sydney Sydney NSW 2007 Australia.ORCID https://orcid.org/0000-0003-3608-5440
Michael MurrayDiscipline of Pharmacology, School of Medical Sciences, University of Sydney Sydney NSW 2006 Australia.
The University of Sydney · AUUniversity of Technology Sydney · AUAustralian National University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Respiring mitochondria establish a proton gradient across the mitochondrial inner membrane (MIM) that is used to generate ATP. Protein-independent mitochondrial uncouplers collapse the proton gradient and disrupt ATP production by shuttling protons back across the MIM in a protonophoric cycle. Continued cycling relies on the formation of MIM-permeable anionic species that can return to the intermembrane space after deprotonation in the mitochondrial matrix. Previously described protonophores contain acidic groups that are part of delocalised π-systems that provide large surfaces for charge delocalisation and facilitate anion permeation across the MIM. Here we present a new class of protonophoric uncoupler based on aryl-urea substituted fatty acids in which an acidic group and a π-system are separated by a long alkyl chain. The aryl-urea group in these molecules acts as a synthetic anion receptor that forms intermolecular hydrogen bonds with the fatty acid carboxylate after deprotonation. Dispersal of the negative charge across the aryl-urea system produces lipophilic dimeric complexes that can permeate the MIM and facilitate repeated cycling. Substitution of the aryl-urea group with lipophilic electron withdrawing groups is critical to complex lipophilicity and uncoupling activity. The aryl-urea substituted fatty acids represent the first biological example of mitochondrial uncoupling mediated by the interaction of a fatty acid and an anion receptor moiety,

Identifiers

PMID34094462
PMCPMC8163295
OpenAlexW3078049115

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.