Evidence map›Paper›PMID 20504770›Full record

ArticleThe Journal of biological chemistry2010

Aminoacyl transfer rate dictates choice of editing pathway in threonyl-tRNA synthetase.

Anand Minajigi, Christopher S Francklyn

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

27 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Article
  3. Aminoacyl-tRNA synthetases.RNA (New York, N.Y.) · 2020
    Review
  4. Review
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  7. Aminoacyl-tRNA synthetases.Methods (San Diego, Calif.) · 2017
    Article
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  19. Amino-acid-dependent shift in tRNA synthetase editing mechanisms.Journal of the American Chemical Society · 2011
    Article
  20. Article
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 2 institutions in 2 countries.

Anand MinajigiCell and Molecular Biology Program, University of Vermont, Burlington, VT 05405, USA.
Christopher S Francklyn
Institute of Molecular and Cell Biology · RUUniversity of Vermont · US

Funding

Structure and Mechanism of Class II tRNA SynthetasesR01GM054899 · NIGMS · UNIVERSITY OF VERMONT &ST AGRIC COLLEGE · PI FRANCKLYN, CHRISTOPHER S · 1997 to 2017
$5.7M
NIGMS NIH HHS GM54899NIGMS NIH HHS R01 GM054899
6 · The paper itself

Abstract

Aminoacyl-tRNA synthetases hydrolyze aminoacyl adenylates and aminoacyl-tRNAs formed from near-cognate amino acids, thereby increasing translational fidelity. The contributions of pre- and post-transfer editing pathways to the fidelity of Escherichia coli threonyl-tRNA synthetase (ThrRS) were investigated by rapid kinetics. In the pre-steady state, asymmetric activation of cognate threonine and noncognate serine was observed in the active sites of dimeric ThrRS, with similar rates of activation. In the absence of tRNA, seryl-adenylate was hydrolyzed 29-fold faster by the ThrRS catalytic domain than threonyl-adenylate. The rate of seryl transfer to cognate tRNA was only 2-fold slower than threonine. Experiments comparing the rate of ATP consumption to the rate of aminoacyl-tRNA(AA) formation demonstrated that pre-transfer hydrolysis contributes to proofreading only when the rate of transfer is slowed significantly. Thus, the relative contributions of pre- and post-transfer editing in ThrRS are subject to modulation by the rate of aminoacyl transfer.

Indexed as

RNA EditingAdenosine TriphosphateBinding SitesCatalytic DomainEscherichia coliHydrolysisKineticsModels, BiologicalModels, ChemicalModels, GeneticRNA, Transfer, Amino AcylSerineSolventsThreonineAdenosine TriphosphateRNA, Transfer, Amino AcylSerineSolventsThreonine

Identifiers

PMID20504770
PMCPMC2911285
OpenAlexW2089143068

What OpenQuestion holds

Textmetadata
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.