Evidence map›Paper›PMID 21637846›Full record

ArticlePloS one2011

Heterologous expression of Alteromonas macleodii and Thiocapsa roseopersicina [NiFe] hydrogenases in Synechococcus elongatus.

Philip D Weyman, Walter A Vargas, Yingkai Tong, Jianping Yu, Pin-Ching Maness, Hamilton O Smith, Qing Xu

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

15 citing papers in PubMed, 40 citations in OpenAlex.

  1. Review
  2. Co-expression of auxiliary genes enhances the activity of a heterologous OBiotechnology for biofuels and bioproducts · 2025
    Article
  3. Review
  4. Photobiohydrogen Production and Strategies for HAdvances in biochemical engineering/biotechnology · 2023
    Article
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  8. Review
  9. Article
  10. Article
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  13. Article
  14. Wide-dynamic-range promoters engineered for cyanobacteria.Journal of biological engineering · 2013
    Article
  15. 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 at 2 institutions in 1 country.

Philip D WeymanDepartment of Synthetic Biology and Bioenergy, The J. Craig Venter Institute, Rockville, Maryland, United States of America.
Walter A Vargas
Yingkai Tong
Jianping Yu
Pin-Ching Maness
Hamilton O Smith
Qing Xu
J. Craig Venter Institute · USNational Renewable Energy Laboratory · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Oxygen-tolerant [NiFe] hydrogenases may be used in future photobiological hydrogen production systems once the enzymes can be heterologously expressed in host organisms of interest. To achieve heterologous expression of [NiFe] hydrogenases in cyanobacteria, the two hydrogenase structural genes from Alteromonas macleodii Deep ecotype (AltDE), hynS and hynL, along with the surrounding genes in the gene operon of HynSL were cloned in a vector with an IPTG-inducible promoter and introduced into Synechococcus elongatus PCC7942. The hydrogenase protein was expressed at the correct size upon induction with IPTG. The heterologously-expressed HynSL hydrogenase was active when tested by in vitro H(2) evolution assay, indicating the correct assembly of the catalytic center in the cyanobacterial host. Using a similar expression system, the hydrogenase structural genes from Thiocapsa roseopersicina (hynSL) and the entire set of known accessory genes were transferred to S. elongatus. A protein of the correct size was expressed but had no activity. However, when the 11 accessory genes from AltDE were co-expressed with hynSL, the T. roseopersicina hydrogenase was found to be active by in vitro assay. This is the first report of active, heterologously-expressed [NiFe] hydrogenases in cyanobacteria.

Indexed as

Gene ExpressionAlteromonasHydrogenaseMutationPlasmidsProtein SubunitsSynechococcusThiocapsa roseopersicinaHydrogenasenickel-iron hydrogenaseProtein Subunits

Identifiers

PMID21637846
PMCPMC3102683
OpenAlexW1996346738

What OpenQuestion holds

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LicenceCC BY
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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.