Evidence map›Paper›PMID 19332784›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2009

Plastid production of protein antibiotics against pneumonia via a new strategy for high-level expression of antimicrobial proteins.

Melanie Oey, Marc Lohse, Lars B Scharff, Bernd Kreikemeyer, Ralph Bock

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
13.2field-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

53 citing papers in PubMed, 119 citations in OpenAlex.

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  12. Plastid Transformation in Tomato: A Vegetable Crop and Model Species.Methods in molecular biology (Clifton, N.J.) · 2021
    Article
  13. Review
  14. Ralph Bock.The Plant cell · 2020
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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

5 authors at 3 institutions in 1 country.

Melanie OeyMax-Planck-Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, D-14476 Potsdam-Golm, Germany.
Marc Lohse
Lars B Scharff
Bernd Kreikemeyer
Ralph Bock
Max Planck Society · DEMax Planck Institute of Molecular Plant Physiology · DEUniversity of Rostock · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Plastid transformation has become an attractive tool in biotechnology. Because of the prokaryotic nature of the plastid's gene expression machinery, expression elements (promoters and untranslated regions) that trigger high-level foreign protein accumulation in plastids usually also confer high expression in bacterial cloning hosts. This can cause problems, for example, when production of antimicrobial compounds is attempted. Their bactericidal activity can make the cloning of the corresponding genes in plastid transformation vectors impossible. Here, we report a general solution to this problem. We have designed a strategy (referred to as toxin shuttle) that allows the expression in plastids of proteins that are toxic to Escherichia coli. The strategy is based on blocking transcription in E. coli by bacterial transcription terminators upstream of the gene of interest, which subsequently are excised in planta by site-specific recombination. We demonstrate the applicability of the strategy by the high-level expression in plastids (to up to 30% of the plant's total soluble protein) of 2 phage-derived protein antibiotics that are toxic to E. coli. We also show that the plastid-produced antibiotics efficiently kill pathogenic strains of Streptococcus pneumoniae, the causative agent of pneumonia, thus providing a promising strategy for the production of next-generation antibiotics in plants.

Indexed as

Anti-Bacterial AgentsAntimicrobial Cationic PeptidesBacteriolysisBiotechnologyGenetic VectorsGenome, PlastidMicrobial Sensitivity TestsMicrobial ViabilityMolecular Sequence DataNicotianaPlastidsPneumoniaRNA, MessengerStreptococcus pneumoniaeToxins, BiologicalTranscription, GeneticAnti-Bacterial AgentsAntimicrobial Cationic PeptidesRNA, MessengerToxins, Biological

Identifiers

PMID19332784
PMCPMC2662961
OpenAlexW2039305280

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.