Evidence map›Paper›PMID 24162923›Full record

ArticleNature methods2013

A superfolding Spinach2 reveals the dynamic nature of trinucleotide repeat-containing RNA.

Rita L Strack, Matthew D Disney, Samie R Jaffrey

Open access · greenAbstract read
In one paragraph

Article in Nature methods, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 176 papers.

0numbers the graph read from it
0cells of the map it votes in
176citing papers in PubMed
22.7field-weighted citation impact, top 1% 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

176 citing papers in PubMed, 386 citations in OpenAlex.

  1. A passive protein environment offsets RNA folding energetics in cells.bioRxiv : the preprint server for biology · 2026
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116 more citing papers are in PubMed but not listed here.

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

3 authors at 2 institutions in 1 country.

Rita L StrackDepartment of Pharmacology, Weill Medical College, Cornell University, New York, New York, USA.
Matthew D Disney
Samie R Jaffrey
Cornell University · USScripps Research Institute · US

Funding

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
Identifying and Studying RNA Loop-Small Molecule InteractionsR01GM079235 · NIGMS · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI DISNEY, MATTHEW D · 2008 to 2012
$2.6M
Novel fluorescent sensors for simple, sensitive, and specific protein detectionR01EB010249 · NIBIB · WEILL MEDICAL COLL OF CORNELL UNIV · PI JAFFREY, SAMIE R · 2009 to 2013
$1.7M
Utilizing novel RNA mimics of GFP to image translationF32GM106683 · NIGMS · WEILL MEDICAL COLL OF CORNELL UNIV · PI STRACK, RITA LEE · 2013 to 2014
$66k
NIBIB NIH HHS R01 EB010249NIGMS NIH HHS F32 GM106683NIGMS NIH HHS GM079235NIGMS NIH HHS R01 GM079235NINDS NIH HHS NS010249NINDS NIH HHS R01 NS064516
6 · The paper itself

Abstract

Imaging RNA in living cells is a challenging problem in cell biology. One strategy for genetically encoding fluorescent RNAs is to express them as fusions with Spinach, an 'RNA mimic of GFP'. We found that Spinach was dimmer than expected when used to tag constructs in living cells owing to a combination of thermal instability and a propensity for misfolding. Using systematic mutagenesis, we generated Spinach2 that overcomes these issues and can be used to image diverse RNAs. Using Spinach2, we detailed the dynamics of the CGG trinucleotide repeat-containing 'toxic RNA' associated with Fragile X-associated tremor/ataxia syndrome, and show that these RNAs form nuclear foci with unexpected morphological plasticity that is regulated by the cell cycle and by small molecules. Together, these data demonstrate that Spinach2 exhibits improved versatility for fluorescently labeling RNAs in living cells.

Indexed as

Trinucleotide RepeatsAnimalsBase SequenceChlorocebus aethiopsCOS CellsDNA Mutational AnalysisEscherichia coliFluorescent DyesGreen Fluorescent ProteinsHEK293 CellsHumansMolecular Sequence DataMutagenesisNucleic Acid ConformationProtein DenaturationProtein FoldingFluorescent DyesGreen Fluorescent ProteinsRNARNA, Untranslated

Identifiers

PMID24162923
PMCPMC3852148
OpenAlexW1976647752

What OpenQuestion holds

Textmetadata
LicenceTDM
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.