Evidence map›Paper›PMID 23729644›Full record

ArticleJournal of bacteriology2013

Importance and determinants of induction of cold-induced DEAD RNA helicase in the hyperthermophilic archaeon Thermococcus kodakarensis.

Eriko Nagaoka, Ryota Hidese, Tadayuki Imanaka, Shinsuke Fujiwara

Open access · bronzeAbstract read
In one paragraph

Article in Journal of bacteriology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

13 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. TheRNA (New York, N.Y.) · 2020
    Article
  5. Article
  6. Distinct Modified Nucleosides in tRNAJournal of bacteriology · 2019
    Article
  7. Article
  8. Gene regulation of two ferredoxin:NADPExtremophiles : life under extreme conditions · 2017
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. 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 2 institutions in 1 country.

Eriko NagaokaDepartment of Bioscience, Graduate School of Science and Technology, Kwansei-Gakuin University, Sanda, Hyogo, Japan.
Ryota Hidese
Tadayuki Imanaka
Shinsuke Fujiwara
Kwansei Gakuin University · JPRitsumeikan University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Thermococcus kodakarensis, which grows optimally at 85°C, expresses cold stress-inducible DEAD box RNA helicase (Tk-deaD) when shifted to 60°C. A DDA1 deletion (ΔTk-deaD) mutant exhibited decreased cell growth, and cells underwent lysis at 60°C in nutrient broth in the absence of elemental sulfur. In contrast, cells in medium containing elemental sulfur at 60°C did not undergo lysis, suggesting that Tk-deaD is necessary for cell growth in sulfur-free medium. To identify the element responsible for the cold response, a pTKR expression probe plasmid was constructed using thermostable catalase from Pyrobaculum calidifontis as a reporter. The plasmid pTKRD, which contained the transcription factor B recognition element, TATA region, and Shine-Dalgarno (SD) region, including the initiation codon of the Tk-deaD gene, exhibited cold inducibility. We also constructed a series of deletion and chimeric constructs with the glutamate dehydrogenase (gdh) promoter, whose expression is constitutive independent of culture temperatures and catalase expression. Reporter assay experiments indicated that the regulatory element is located in the region between the SD region and the initiation codon (ATG). Nucleotide sequences in the upstream regions of Tk-deaD and gdh were compared and revealed a five-adenosine (AAAAA) sequence between SD and ATG of Tk-deaD that was not present in gdh. Replacement of the repeated adenosine sequence with other sequences revealed that the AAAAA sequence is important for cold induction. This sequence-specific mechanism is unique and is one that has not been identified in other known cold-inducible genes.

Indexed as

Gene Expression Regulation, ArchaealCell DeathCold TemperatureDEAD-box RNA HelicasesDNA Mutational AnalysisGene DeletionGene Expression ProfilingGenes, ReporterSulfurThermococcusDEAD-box RNA HelicasesSulfur

Identifiers

PMID23729644
PMCPMC3719537
OpenAlexW2118803042

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.