Evidence map›Paper›PMID 36097297›Full record

ArticleNature chemical biology2022

An RNA aptamer that shifts the reduction potential of metabolic cofactors.

John S Samuelian, Thomas J Gremminger, Zhenwei Song, Raghav R Poudyal, Jun Li, Yuanzhe Zhou, Seth A Staller, Johan A Carballo, Manami Roychowdhury-Saha, Shi-Jie Chen and 3 more

Open access · hybridAbstract read
In one paragraph

Article in Nature chemical biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

11 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Article
  3. Activation of Caged Functional RNAs by An Oxidative Transformation.Chembiochem : a European journal of chemical biology · 2025
    Article
  4. Article
  5. Review
  6. Article
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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 8 institutions in 2 countries.

John S SamuelianDepartment of Chemistry, Saint Louis University, St. Louis, MO, USA.ORCID http://orcid.org/0000-0003-3650-2320
Thomas J GremmingerDepartment of Biochemistry, University of Missouri, Columbia, MO, USA.
Zhenwei SongDepartment of Biochemistry, University of Missouri, Columbia, MO, USA.ORCID http://orcid.org/0000-0002-9679-5113
Raghav R PoudyalDepartment of Biochemistry, University of Missouri, Columbia, MO, USA.ORCID http://orcid.org/0000-0001-8911-6867
Jun LiDepartment of Physics, University of Missouri, Columbia, MO, USA.ORCID http://orcid.org/0000-0002-7011-1991
Yuanzhe ZhouDepartment of Physics, University of Missouri, Columbia, MO, USA.ORCID http://orcid.org/0000-0003-1858-3067
Seth A StallerDepartment of Biochemistry, University of Missouri, Columbia, MO, USA.
Johan A CarballoDepartment of Chemistry, Saint Louis University, St. Louis, MO, USA.
Manami Roychowdhury-SahaDepartment of Chemistry, Indiana University, Bloomington, IN, USA.ORCID http://orcid.org/0000-0002-2111-8468
Shi-Jie ChenDepartment of Biochemistry, University of Missouri, Columbia, MO, USA.
Donald H BurkeDepartment of Biochemistry, University of Missouri, Columbia, MO, USA. burkedh@missouri.edu.ORCID http://orcid.org/0000-0001-6513-8391
Xiao HengDepartment of Biochemistry, University of Missouri, Columbia, MO, USA. hengx@missouri.edu.
Dana A BaumDepartment of Chemistry, Saint Louis University, St. Louis, MO, USA. dana.baum@slu.edu.ORCID http://orcid.org/0000-0002-2777-1708
University of Missouri · USSaint Louis University · USAVEO Oncology (United States) · USInternational College of Applied Kinesiology-USA · USMenlo School · USMissouri College · USPfizer (United States) · USSaint Louis University · ES

Funding

New methods for computational modeling of RNA structuresR35GM134919 · NIGMS · UNIVERSITY OF MISSOURI-COLUMBIA · PI SHI-JIE CHEN · 2020 to 2026
$3.3M
NIGMS NIH HHS R35 GM134919
6 · The paper itself

Abstract

The discovery of ribozymes has inspired exploration of RNA's potential to serve as primordial catalysts in a hypothesized RNA world. Modern oxidoreductase enzymes employ differential binding between reduced and oxidized forms of redox cofactors to alter cofactor reduction potential and enhance the enzyme's catalytic capabilities. The utility of differential affinity has been underexplored as a chemical strategy for RNA. Here we show an RNA aptamer that preferentially binds oxidized forms of flavin over reduced forms and markedly shifts flavin reduction potential by -40 mV, similar to shifts for oxidoreductases. Nuclear magnetic resonance structural analysis revealed π-π and donor atom-π interactions between the aptamer and flavin that cause unfavorable contacts with the electron-rich reduced form, suggesting a mechanism by which the local environment of the RNA-binding pocket drives the observed shift in cofactor reduction potential. It seems likely that primordial RNAs could have used similar strategies in RNA world metabolisms.

Indexed as

Aptamers, NucleotideRNA, CatalyticFlavinsOxidation-ReductionOxidoreductasesRNAAptamers, NucleotideFlavinsOxidoreductasesRNARNA, Catalytic

Identifiers

PMID36097297
PMCPMC9596375
OpenAlexW4295483634

What OpenQuestion holds

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Registered trials

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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.