Evidence map›Paper›PMID 32024753›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2020

Elongation factor-Tu can repetitively engage aminoacyl-tRNA within the ribosome during the proofreading stage of tRNA selection.

Justin C Morse, Dylan Girodat, Benjamin J Burnett, Mikael Holm, Roger B Altman, Karissa Y Sanbonmatsu, Hans-Joachim Wieden, Scott C Blanchard

Open access · hybridAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

37 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Article
  3. Regulation of RNA-binding proteins by small biomolecules.Nature reviews. Molecular cell biology · 2026
    Review
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  17. Review
  18. TheAutophagy · 2023
    Article
  19. 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

8 authors at 4 institutions in 2 countries.

Justin C MorseDepartment of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10065.
Dylan GirodatDepartment of Chemistry and Biochemistry, Alberta RNA Research and Training Institute, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada.
Benjamin J BurnettDepartment of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10065.
Mikael HolmDepartment of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN 38105.
Roger B AltmanDepartment of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN 38105.
Karissa Y SanbonmatsuTheoretical Biology and Biophysics Group, Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545 kys@lanl.gov hj.wieden@uleth.ca Scott.Blanchard@stjude.org.
Hans-Joachim WiedenDepartment of Chemistry and Biochemistry, Alberta RNA Research and Training Institute, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada; kys@lanl.gov hj.wieden@uleth.ca Scott.Blanchard@stjude.org.ORCID 0000-0001-5181-6059
Scott C BlanchardDepartment of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10065; kys@lanl.gov hj.wieden@uleth.ca Scott.Blanchard@stjude.org.ORCID 0000-0003-2717-9365
St. Jude Children's Research Hospital · USCornell University · USUniversity of Lethbridge · CALos Alamos National Laboratory · US

Funding

Imaging Protein Synthesis on the Ribosome using Single-Molecule FRETR01GM079238 · NIGMS · WEILL MEDICAL COLL OF CORNELL UNIV · PI BLANCHARD, SCOTT C · 2006 to 2023
$7.0M
Large-Scale Simulations of Ribosomal DecodingR01GM072686 · NIGMS · UNIVERSITY OF CALIF-LOS ALAMOS NAT LAB · PI SANBONMATSU, KARISSA Y · 2005 to 2024
$5.5M
Next-generation Fluorescent Probes for Biological ResearchR01GM098859 · NIGMS · WEILL MEDICAL COLL OF CORNELL UNIV · PI BLANCHARD, SCOTT C · 2012 to 2019
$2.9M
NIGMS NIH HHS R01 GM072686NIGMS NIH HHS R01 GM079238NIGMS NIH HHS R01 GM098859
6 · The paper itself

Abstract

The substrate for ribosomes actively engaged in protein synthesis is a ternary complex of elongation factor Tu (EF-Tu), aminoacyl-tRNA (aa-tRNA), and GTP. EF-Tu plays a critical role in mRNA decoding by increasing the rate and fidelity of aa-tRNA selection at each mRNA codon. Here, using three-color single-molecule fluorescence resonance energy transfer imaging and molecular dynamics simulations, we examine the timing and role of conformational events that mediate the release of aa-tRNA from EF-Tu and EF-Tu from the ribosome after GTP hydrolysis. Our investigations reveal that conformational changes in EF-Tu coordinate the rate-limiting passage of aa-tRNA through the accommodation corridor en route to the peptidyl transferase center of the large ribosomal subunit. Experiments using distinct inhibitors of the accommodation process further show that aa-tRNA must at least partially transit the accommodation corridor for EF-Tu⋅GDP to release. aa-tRNAs failing to undergo peptide bond formation at the end of accommodation corridor passage after EF-Tu release can be reengaged by EF-Tu⋅GTP from solution, coupled to GTP hydrolysis. These observations suggest that additional rounds of ternary complex formation can occur on the ribosome during proofreading, particularly when peptide bond formation is slow, which may serve to increase both the rate and fidelity of protein synthesis at the expense of GTP hydrolysis.

Indexed as

Escherichia coliEscherichia coli ProteinsFluorescence Resonance Energy TransferGuanosine TriphosphateKineticsPeptide Elongation Factor TuProtein BiosynthesisRibosomesRibosome Subunits, LargeRNA, TransferRNA, Transfer, Amino AcylEscherichia coli ProteinsGuanosine TriphosphatePeptide Elongation Factor TuRNA, TransferRNA, Transfer, Amino AcyltufB protein, E coliaminoacyl-tRNAelongation factor Tuprotein synthesissingle-molecule FRETtranslation

Identifiers

PMID32024753
PMCPMC7035488
OpenAlexW3005144567

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.