Evidence map›Paper›PMID 23185630›Full record

ArticlePloS one2012

Ethylene synthesis and regulated expression of recombinant protein in Synechocystis sp. PCC 6803.

Fernando Guerrero, Verónica Carbonell, Matteo Cossu, Danilo Correddu, Patrik R Jones

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed
12.1field-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

86 citing papers in PubMed, 183 citations in OpenAlex.

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  6. Deciphering guanidine assimilation and riboswitch-based gene regulation in cyanobacteria for synthetic biology applications.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  17. The Molecular Toolset and Techniques Required to Build Cyanobacterial Cell Factories.Advances in biochemical engineering/biotechnology · 2023
    Article
  18. Article
  19. Article
  20. Article

26 more citing papers are in PubMed but not listed here.

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.

Fernando GuerreroDepartment of Biochemistry and Food Chemistry, University of Turku, Turku, Finland.
Verónica Carbonell
Matteo Cossu
Danilo Correddu
Patrik R Jones
University of Turku · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The ethylene-forming enzyme (EFE) from Pseudomonas syringae catalyzes the synthesis of ethylene which can be easily detected in the headspace of closed cultures. A synthetic codon-optimized gene encoding N-terminal His-tagged EFE (EFEh) was expressed in Synechocystis sp. PCC 6803 (Synechocystis) and Escherichia coli (E. coli) under the control of diverse promoters in a self-replicating broad host-range plasmid. Ethylene synthesis was stably maintained in both organisms in contrast to earlier work in Synechococcus elongatus PCC 7942. The rate of ethylene accumulation was used as a reporter for protein expression in order to assess promoter strength and inducibility with the different expression systems. Several metal-inducible cyanobacterial promoters did not function in E. coli but were well-regulated in cyanobacteria, albeit at a low level of expression. The E. coli promoter P(trc) resulted in constitutive expression in cyanobacteria regardless of whether IPTG was added or not. In contrast, a Lac promoter variant, P(A1lacO-1), induced EFE-expression in Synechocystis at a level of expression as high as the Trc promoter and allowed a fine level of IPTG-dependent regulation of protein-expression. The regulation was tight at low cell density and became more relaxed in more dense cultures. A synthetic quorum-sensing promoter system was also constructed and shown to function well in E. coli, however, only a very low level of EFE-activity was observed in Synechocystis, independent of cell density.

Indexed as

Gene Expression Regulation, BacterialBacterial ProteinsBase SequenceCodonEscherichia coliEthylenesLyasesMolecular Sequence DataPlasmidsPromoter Regions, GeneticPseudomonas syringaeQuorum SensingRecombinant Fusion ProteinsSynechocystisTransformation, BacterialBacterial ProteinsCodonethyleneethylene forming enzymeEthylenesLyasesRecombinant Fusion Proteins

Identifiers

PMID23185630
PMCPMC3503970
OpenAlexW2165952036

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.