Evidence map›Paper›PMID 23637884›Full record

ArticlePloS one2013

β-Glucan synthase gene overexpression and β-glucans overproduction in Pleurotus ostreatus using promoter swapping.

Ran Chai, Cuiwei Qiu, Dongren Liu, Yuancheng Qi, Yuqian Gao, Jinwen Shen, Liyou Qiu

Abstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

  1. Article
  2. Production of β-Glucans byInternational journal of molecular sciences · 2025
    Review
  3. Mechanism UnderlyingJournal of fungi (Basel, Switzerland) · 2025
    Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Genome-wide gene expression patterns in dikaryon of the basidiomycete fungus Pleurotus ostreatus.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]
    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

7 authors.

Ran ChaiCollege of Life Sciences, Henan Agricultural University, Zhengzhou, People's Republic of China.
Cuiwei Qiu
Dongren Liu
Yuancheng Qi
Yuqian Gao
Jinwen Shen
Liyou Qiu

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mushroom β-glucans are potent immunological stimulators in medicine, but their productivities are very low. In this study, we successfully improved its production by promoter engineering in Pleurotus ostreatus. The promoter for β-1,3-glucan synthase gene (GLS) was replaced by the promoter of glyceraldehyde-3-phosphate dehydrogenase gene of Aspergillus nidulans. The homologous recombination fragment for swapping GLS promoter comprised five segments, which were fused by two rounds of combined touchdown PCR and overlap extension PCR (TD-OE PCR), and was introduced into P. ostreatus through PEG/CaCl2-mediated protoplast transformation. The transformants exhibited one to three fold higher transcription of GLS gene and produced 32% to 131% higher yield of β-glucans than the wild type. The polysaccharide yields had a significant positive correlation to the GLS gene expression. The infrared spectra of the polysaccharides all displayed the typical absorption peaks of β-glucans. This is the first report of successful swapping of promoters in filamentous fungi.

Indexed as

Gene ExpressionPromoter Regions, GeneticAmino Acid Sequencebeta-GlucansGene Expression Regulation, FungalGene OrderGlucosyltransferasesHomologous RecombinationMolecular Sequence DataPleurotusPolysaccharidesRNA, MessengerSequence Alignmentbeta-Glucansglucan synthaseGlucosyltransferasesPolysaccharidesRNA, Messenger

Identifiers

PMID23637884
PMCPMC3634845

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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.