Evidence map›Paper›PMID 29099323›Full record

ArticleRNA biology2018

Cold adaptation of tRNA nucleotidyltransferases: A tradeoff in activity, stability and fidelity.

Felix G M Ernst, Lieselotte Erber, Joana Sammler, Frank Jühling, Heike Betat, Mario Mörl

Open access · bronzeAbstract read
In one paragraph

Article in RNA biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

17 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
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  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Adaptation of theInternational journal of molecular sciences · 2020
    Article
  12. Article
  13. Article
  14. A Temporal Order in 5'- and 3'- Processing of Eukaryotic tRNAInternational journal of molecular sciences · 2019
    Article
  15. Article
  16. Article
  17. 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

6 authors at 2 institutions in 2 countries.

Felix G M Ernsta Institute for Biochemistry, University of Leipzig , Leipzig , Germany.
Lieselotte Erbera Institute for Biochemistry, University of Leipzig , Leipzig , Germany.
Joana Sammlera Institute for Biochemistry, University of Leipzig , Leipzig , Germany.
Frank Jühlingb INSERM Unit 1110 , Institute of Viral and Liver Diseases, University of Strasbourg , Strasbourg , France.
Heike Betata Institute for Biochemistry, University of Leipzig , Leipzig , Germany.
Mario Mörla Institute for Biochemistry, University of Leipzig , Leipzig , Germany.
Leipzig University · DEInserm · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cold adaptation is an evolutionary process that has dramatic impact on enzymatic activity. Increased flexibility of the protein structure represents the main evolutionary strategy for efficient catalysis and reaction rates in the cold, but is achieved at the expense of structural stability. This results in a significant activity-stability tradeoff, as it was observed for several metabolic enzymes. In polymerases, however, not only reaction rates, but also fidelity plays an important role, as these enzymes have to synthesize copies of DNA and RNA as exact as possible. Here, we investigate the effects of cold adaptation on the highly accurate CCA-adding enzyme, an RNA polymerase that uses an internal amino acid motif within the flexible catalytic core as a template to synthesize the CCA triplet at tRNA 3'-ends. As the relative orientation of these residues determines nucleotide selection, we characterized how cold adaptation impacts template reading and fidelity. In a comparative analysis of closely related psychro-, meso-, and thermophilic enzymes, the cold-adapted polymerase shows a remarkable error rate during CCA synthesis in vitro as well as in vivo. Accordingly, CCA-adding activity at low temperatures is not only achieved at the expense of structural stability, but also results in a reduced polymerization fidelity.

Indexed as

Adaptation, PhysiologicalAmino Acid MotifsAmino Acid SequenceBacillalesCatalytic DomainCold TemperatureDNA-Directed RNA PolymerasesEnzyme StabilityNucleic Acid ConformationNucleotidesRNARNA NucleotidyltransferasesRNA, TransferStress, PhysiologicalDNA-Directed RNA PolymerasesNucleotidesRNARNA NucleotidyltransferasesRNA, TransfertRNA nucleotidyltransferaseCCA-additionCCACCA tagerror rateFidelity tradeoffpolymerization fidelitypsychrophilic RNA polymerasetRNA quality control

Identifiers

PMID29099323
PMCPMC5785979
OpenAlexW2765994596

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.