Evidence map›Paper›PMID 28331998›Full record

ArticleExtremophiles : life under extreme conditions2017

Reverse gyrase is essential for microbial growth at 95 °C.

Gina L Lipscomb, Elin M Hahn, Alexander T Crowley, Michael W W Adams

Abstract read
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In one paragraph

Article in Extremophiles : life under extreme conditions, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

21 citing papers in PubMed, 45 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. How Do Thermophiles Organize Their Genomes?Microbes and environments · 2024
    Review
  6. Article
  7. Manipulating Fermentation Pathways in the Hyperthermophilic ArchaeonApplied and environmental microbiology · 2023
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Archaea: A Gold Mine for Topoisomerase Diversity.Frontiers in microbiology · 2021
    Review
  14. Article
  15. Article
  16. Biotechnology of extremely thermophilic archaea.FEMS microbiology reviews · 2018
    Review
  17. Article
  18. Article
  19. A Key Enzyme of the NADJournal of bacteriology · 2017
    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

4 authors at 1 institution in 1 country.

Gina L LipscombDepartment of Biochemistry and Molecular Biology, University of Georgia, Athens, GA, USA.
Elin M HahnDepartment of Biochemistry and Molecular Biology, University of Georgia, Athens, GA, USA.
Alexander T CrowleyDepartment of Biochemistry and Molecular Biology, University of Georgia, Athens, GA, USA.
Michael W W AdamsDepartment of Biochemistry and Molecular Biology, University of Georgia, Athens, GA, USA. adamsm@uga.edu.
University of Georgia · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Reverse gyrase is an enzyme that induces positive supercoiling in closed circular DNA in vitro. It is unique to thermophilic organisms and found without exception in all microorganisms defined as hyperthermophiles, that is, those having optimal growth temperatures of 80 °C and above. Although its in vivo role has not been clearly defined, it has been implicated in stabilizing DNA at high temperatures. Whether or not it is absolutely required for growth at these high temperatures has yet to be fully determined. In a previous study with an organism that has an optimal growth temperature of 85 °C, it was shown that the enzyme is not a prerequisite for life at extreme temperatures as disruption of its gene did not result in a lethal phenotype at the supraoptimal growth temperature of 90 °C. Herein we show that the enzyme is absolutely required for microbial growth at 95 °C, which in this case is a suboptimal growth temperature. Deletion of the gene encoding the reverse gyrase of the model hyperthermophilic archaeon Pyrococcus furiosus, which has an optimal growth temperature of 100 °C, revealed that the gene is required for growth at 95 °C, as well as at 100 °C. The results suggest that a temperature threshold above 90 °C exists, wherein the activity of reverse gyrase is absolutely necessary to maintain a correct DNA twist for any organism growing at such temperature extremes.

Indexed as

Hot TemperatureArchaeal ProteinsCell DivisionDNA Topoisomerases, Type IEnzyme StabilityExtreme EnvironmentsGene DeletionPyrococcus furiosusArchaeal ProteinsDNA reverse gyraseDNA Topoisomerases, Type IArchaeaHyperthermophilePyrococcus furiosusReverse gyrase

Identifiers

PMID28331998
OpenAlexW2601664242

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.