Evidence map›Paper›PMID 26148064›Full record

ArticlePloS one2015

Identification, Characterization and Down-Regulation of Cysteine Protease Genes in Tobacco for Use in Recombinant Protein Production.

Kishor Duwadi, Ling Chen, Rima Menassa, Sangeeta Dhaubhadel

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
5.5field-weighted citation impact, top 5% 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

22 citing papers in PubMed, 44 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Transient proteolysis reduction ofFrontiers in plant science · 2022
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  6. Review
  7. Review
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  9. Article
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  14. Overexpression ofFrontiers in plant science · 2020
    Article
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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.

Kishor DuwadiDepartment of Biology, University of Western Ontario, London, ON, Canada.
Ling ChenAgriculture and Agri-Food Canada, 1391 Sandford Street, London, ON, Canada.
Rima MenassaDepartment of Biology, University of Western Ontario, London, ON, Canada; Agriculture and Agri-Food Canada, 1391 Sandford Street, London, ON, Canada.
Sangeeta DhaubhadelDepartment of Biology, University of Western Ontario, London, ON, Canada; Agriculture and Agri-Food Canada, 1391 Sandford Street, London, ON, Canada.
Agriculture and Agri-Food Canada · CAWestern University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Plants are an attractive host system for pharmaceutical protein production. Many therapeutic proteins have been produced and scaled up in plants at a low cost compared to the conventional microbial and animal-based systems. The main technical challenge during this process is to produce sufficient levels of recombinant proteins in plants. Low yield is generally caused by proteolytic degradation during expression and downstream processing of recombinant proteins. The yield of human therapeutic interleukin (IL)-10 produced in transgenic tobacco leaves was found to be below the critical level, and may be due to degradation by tobacco proteases. Here, we identified a total of 60 putative cysteine protease genes (CysP) in tobacco. Based on their predicted expression in leaf tissue, 10 candidate CysPs (CysP1-CysP10) were selected for further characterization. The effect of CysP gene silencing on IL-10 accumulation was examined in tobacco. It was found that the recombinant protein yield in tobacco could be increased by silencing CysP6. Transient expression of CysP6 silencing construct also showed an increase in IL-10 accumulation in comparison to the control. Moreover, CysP6 localizes to the endoplasmic reticulum (ER), suggesting that ER may be the site of IL-10 degradation. Overall results suggest that CysP6 is important in determining the yield of recombinant IL-10 in tobacco leaves.

Indexed as

Cysteine ProteasesDown-RegulationEndoplasmic ReticulumGene Expression Regulation, PlantHumansInterleukin-10NicotianaPlant LeavesPlant ProteinsPlants, Genetically ModifiedRecombinant ProteinsCysteine ProteasesIL10 protein, humanInterleukin-10Plant ProteinsRecombinant Proteins

Identifiers

PMID26148064
PMCPMC4493103
OpenAlexW1657581054

What OpenQuestion holds

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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.