Evidence map›Paper›PMID 30760790›Full record

ArticleScientific reports2019

Gram-scale fermentative production of ergothioneine driven by overproduction of cysteine in Escherichia coli.

Naoyuki Tanaka, Yusuke Kawano, Yasuharu Satoh, Tohru Dairi, Iwao Ohtsu

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
6.3field-weighted citation impact, top 3% 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

29 citing papers in PubMed, 73 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. EngineeringMicroorganisms · 2026
    Article
  5. Article
  6. Enhanced production of ergothioneine in Aspergillus oryzae.Applied microbiology and biotechnology · 2025
    Article
  7. Review
  8. Review
  9. AdvancingBioengineering (Basel, Switzerland) · 2024
    Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. A SingleInternational journal of molecular sciences · 2022
    Article
  16. Changes in Sulfur Metabolism in Mouse Brains following Radon Inhalation.International journal of environmental research and public health · 2022
    Article
  17. Article
  18. Article
  19. 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

5 authors at 2 institutions in 1 country.

Naoyuki TanakaGradutate of School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan.
Yusuke KawanoGradutate of School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan.ORCID 0000-0002-6845-8902
Yasuharu SatohGraduate School of Engineering, Hokkaido University, N13 & W8, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan.ORCID 0000-0001-6671-7758
Tohru DairiGraduate School of Engineering, Hokkaido University, N13 & W8, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan.ORCID 0000-0002-3406-7970
Iwao OhtsuGradutate of School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan. ohtsu.iwao.fm@u.tsukuba.ac.jp.
University of Tsukuba · JPHokkaido University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ergothioneine (ERG), a unique thiol compound, is suggested to function as an antioxidant and cytoprotectant. Despite several recent attempts to produce ERG using various organisms, its yield was still very low and the costs remained high. Since the level of ERG produced depends strictly on the availability of three distinct precursor amino acids (L-cysteine (Cys), L-histidine, and L-methionine (Met)), metabolic engineering for enhancement of the flux toward ERG biosynthesis is required. Herein, we took advantage of a high-Cys production system using Escherichia coli cells, in which Cys biosynthesis and excretion were activated, and applied it to the fermentative production of ERG from glucose. The Cys overproduction in E. coli cells carrying the egtBCDE genes from Mycobacterium smegmatis was effective for ERG production. Furthermore, coexpression of the egtA gene, which encodes γ-glutamylcysteine synthetase that synthesizes the γ-glutamylcysteine used as a sulfur source of ERG biosynthesis, enhanced ERG production even though E. coli intrinsically has γ-glutamylcysteine synthetase. Additionally, disruption of the metJ gene that encodes the transcriptional repressor involved in Met metabolism was effective in further increasing the production of ERG. Finally, we succeeded in the high-level production of 1.31 g/L ERG in a fed-batch culture process using a jar fermenter.

Indexed as

ApoproteinsBacterial ProteinsBatch Cell Culture TechniquesCysteineErgothioneineEscherichia coliEscherichia coli ProteinsGlucoseGlutamate-Cysteine LigaseHistidineMetabolic EngineeringMethionineMycobacterium smegmatisRepressor ProteinsApoproteinsBacterial ProteinsCysteineErgothioneineEscherichia coli ProteinsGlucoseGlutamate-Cysteine LigaseHistidineMethionineMetJ protein, E coliRepressor Proteins

Identifiers

PMID30760790
PMCPMC6374457
OpenAlexW2921037785

What OpenQuestion holds

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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.