Evidence map›Paper›PMID 30885721›Full record

ArticleJournal of molecular biology2019

G-Quadruplexes in Human Ribosomal RNA.

Santi Mestre-Fos, Petar I Penev, Suttipong Suttapitugsakul, Michael Hu, Chieri Ito, Anton S Petrov, Roger M Wartell, Ronghu Wu, Loren Dean Williams

Open access · greenAbstract read
In one paragraph

Article in Journal of molecular biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
2.9field-weighted citation impact, top 8% 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

43 citing papers in PubMed, 78 citations in OpenAlex.

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  7. G-quadruplex stabilization induces DNA breaks in pericentromeric repetitive DNA sequences in B lymphocytes.Proceedings of the National Academy of Sciences of the United States of America · 2025
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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

9 authors at 1 institution in 1 country.

Santi Mestre-FosCenter for the Origin of Life, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA; School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA.
Petar I PenevCenter for the Origin of Life, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA; School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA.
Suttipong SuttapitugsakulSchool of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA.
Michael HuCenter for the Origin of Life, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA; School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA.
Chieri ItoCenter for the Origin of Life, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA; School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA.
Anton S PetrovCenter for the Origin of Life, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA; School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA.
Roger M WartellCenter for the Origin of Life, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA; School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA; School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA.
Ronghu WuSchool of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA.
Loren Dean WilliamsCenter for the Origin of Life, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA; School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA; School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA. Electronic address: loren.williams@chemistry.gatech.edu.
Georgia Institute of Technology · US

Funding

Effective MS-Based Methods for Unraveling Cell Surface Protein InteractionsR01GM118803 · NIGMS · GEORGIA INSTITUTE OF TECHNOLOGY · PI WU, RONGHU · 2017 to 2024
$2.4M
NIGMS NIH HHS R01 GM118803
6 · The paper itself

Abstract

rRNA is the single most abundant polymer in most cells. Mammalian rRNAs are nearly twice as large as those of prokaryotes. Differences in rRNA size are due to expansion segments, which contain extended tentacles in metazoans. Here we show that the terminus of an rRNA tentacle of Homo sapiens contains 10 tandem G-tracts that form highly stable G-quadruplexes in vitro. We characterized rRNA of the H. sapiens large ribosomal subunit by computation, circular dichroism, UV melting, fluorescent probes, nuclease accessibility, electrophoretic mobility shifts, and blotting. We investigated Expansion Segment 7 (ES7), oligomers derived from ES7, intact 28S rRNA, 80S ribosomes, and polysomes. We used mass spectrometry to identify proteins that bind to rRNA G-quadruplexes in cell lysates. These proteins include helicases (DDX3, CNBP, DDX21, DDX17) and heterogeneous nuclear ribonucleoproteins. Finally, by multiple sequence alignments, we observe that G-quadruplex-forming sequences are a general feature of LSU rRNA of Chordata but not, as far as we can tell, of other species. Chordata ribosomes present polymorphic tentacles with the potential to switch between inter- and intramolecular G-quadruplexes. To our knowledge, G-quadruplexes have not been reported previously in ribosomes.

Indexed as

G-QuadruplexesAnimalsBase SequenceCircular DichroismElectrophoretic Mobility Shift AssayHumansNucleic Acid ConformationRibosome Subunits, LargeRNA, RibosomalSequence AlignmentRNA, RibosomalChordatesexpansion segmentshelicasespolysomesrRNA

Identifiers

PMID30885721
PMCPMC8064279
OpenAlexW2922322422

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.