Evidence map›Paper›PMID 30029656›Full record

ArticleMicrobial cell factories2018

Metabolic engineering of Corynebacterium glutamicum for the production of cis, cis-muconic acid from lignin.

Judith Becker, Martin Kuhl, Michael Kohlstedt, Sören Starck, Christoph Wittmann

Open access · goldAbstract read
In one paragraph

Article in Microbial cell factories, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
8.6field-weighted citation impact, top 1% 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

50 citing papers in PubMed, 220 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Obtaining PDC and other high-added value products from lignin byJournal of integrative bioinformatics · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Biological Upcycling of Plastics Waste.Annual review of chemical and biomolecular engineering · 2024
    Review
  14. Article
  15. Article
  16. EngineeringApplied and environmental microbiology · 2024
    Article
  17. The chemical logic of enzymatic lignin degradation.Chemical communications (Cambridge, England) · 2024
    Review
  18. Article
  19. Bacterial transformation of lignin: key enzymes and high-value products.Biotechnology for biofuels and bioproducts · 2024
    Review
  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 1 institution in 1 country.

Judith BeckerInstitute of Systems Biotechnology, Saarland University, Campus A1.5, Saarbrücken, Germany.
Martin KuhlInstitute of Systems Biotechnology, Saarland University, Campus A1.5, Saarbrücken, Germany.
Michael KohlstedtInstitute of Systems Biotechnology, Saarland University, Campus A1.5, Saarbrücken, Germany.
Sören StarckInstitute of Systems Biotechnology, Saarland University, Campus A1.5, Saarbrücken, Germany.
Christoph WittmannInstitute of Systems Biotechnology, Saarland University, Campus A1.5, Saarbrücken, Germany. christoph.wittmann@uni-saarland.de.ORCID http://orcid.org/0000-0002-7952-985X
Saarland University · DE

Funding

Bundesministerium für Bildung und Forschung 01DN17036Bundesministerium für Bildung und Forschung 03V0757
6 · The paper itself

Abstract

backgroundCis, cis-muconic acid (MA) is a dicarboxylic acid of recognized industrial value. It provides direct access to adipic acid and terephthalic acid, prominent monomers of commercial plastics.

resultsIn the present work, we engineered the soil bacterium Corynebacterium glutamicum into a stable genome-based cell factory for high-level production of bio-based MA from aromatics and lignin hydrolysates. The elimination of muconate cycloisomerase (catB) in the catechol branch of the β-ketoadipate pathway provided a mutant, which accumulated MA at 100% molar yield from catechol, phenol, and benzoic acid, using glucose as additional growth substrate. The production of MA was optimized by constitutive overexpression of catA, which increased the activity of the encoded catechol 1,2-dioxygenase, forming MA from catechol, tenfold. Intracellular levels of catechol were more than 30-fold lower than extracellular levels, minimizing toxicity, but still saturating the high affinity CatA enzyme. In a fed-batch process, the created strain C. glutamicum MA-2 accumulated 85 g L

conclusionsOur findings open the door to valorize lignin, the second most abundant polymer on earth, by metabolically engineered C. glutamicum for industrial production of MA and potentially other chemicals.

Indexed as

Bacterial ProteinsCorynebacterium glutamicumIntramolecular LyasesLigninMetabolic EngineeringSorbic AcidBacterial ProteinsIntramolecular LyasesLigninmuconate cycloisomerasemuconic acidSorbic AcidAdipic acidAromaticsBio-plasticCatechol dioxygenaseLigninMetabolic engineeringMuconate cycloisomeraseTerephthalic acid

Identifiers

PMID30029656
PMCPMC6054733
OpenAlexW2884677599

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.