Evidence map›Paper›PMID 31631009›Full record

ArticleCell chemical biology2019

A Fluorogenic RNA-Based Sensor Activated by Metabolite-Induced RNA Dimerization.

Hyaeyeong Kim, Samie R Jaffrey

Open access · bronzeAbstract read
In one paragraph

Article in Cell chemical biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

21 citing papers in PubMed, 49 citations in OpenAlex.

  1. Honeydew: A Fluorescent Aptamer for Low-Cost Azo Food Dyes.Chembiochem : a European journal of chemical biology · 2026
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  8. Artificial dynamic structure ensemble-guided rational design of a universal RNA aptamer-based sensing tag.Proceedings of the National Academy of Sciences of the United States of America · 2024
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  10. Review
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  17. Incorporation of a FRET Pair into a Riboswitch RNA to Measure MgInternational journal of molecular sciences · 2022
    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

2 authors at 1 institution in 1 country.

Hyaeyeong KimDepartment of Pharmacology, Weill Cornell Medicine, Cornell University, New York, NY 10065, USA.
Samie R JaffreyDepartment of Pharmacology, Weill Cornell Medicine, Cornell University, New York, NY 10065, USA. Electronic address: srj2003@med.cornell.edu.
Cornell University · US

Funding

New mechanisms and technologies for understanding post-transcriptional gene regulation in neuronsR35NS111631 · NINDS · WEILL MEDICAL COLL OF CORNELL UNIV · PI SAMIE R JAFFREY · 2019 to 2026
$8.6M
Engineering RNA-activated fluorescence switches for RNA imaging and analyte sensiR01NS064516 · NINDS · WEILL MEDICAL COLL OF CORNELL UNIV · PI JAFFREY, SAMIE R · 2009 to 2018
$3.6M
NINDS NIH HHS R01 NS064516NINDS NIH HHS R35 NS111631
6 · The paper itself

Abstract

Corn is a fluorogenic RNA aptamer that forms a high-affinity quasi-symmetric homodimer. The Corn dimer interface binds DFHO, resulting in highly photostable yellow fluorescence. Because of its photostability, Corn would be useful in RNA-based small-molecule biosensors, where quantitative accuracy would be affected by photobleaching. Here we describe a strategy for converting the constitutive Corn dimer into a small-molecule-regulated fluorescent biosensor that detects S-adenosylmethionine (SAM) in vitro and in living cells. We fused the Corn aptamer into a helical stem that was engineered by circularly permuting the SAM aptamer from the SAM-III riboswitch. In the absence of SAM, the Corn portion of this fusion RNA is unable to dimerize. However, upon binding SAM, the RNA dimerizes and binds DFHO. This RNA-based biosensor enables detection of SAM dynamics in living mammalian cells. Together, these data describe a class of RNA-based biosensor based on small-molecule-regulated dimerization of Corn.

Indexed as

Aptamers, NucleotideBiosensing TechniquesDimerizationFluorescent DyesHEK293 CellsHumansKineticsNucleic Acid ConformationRiboswitchRNAS-AdenosylmethionineAptamers, NucleotideFluorescent DyesRiboswitchRNAS-Adenosylmethioninecell imagingfluorogenic aptamermetabolite dynamicsRNA dimerizationS-adenosylmethionine (SAM) riboswitch

Identifiers

PMID31631009
PMCPMC6939632
OpenAlexW2981059853

What OpenQuestion holds

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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.