Evidence map›Paper›PMID 20082702›Full record

ArticleMicrobial cell factories2010

Expression and display of UreA of Helicobacter acinonychis on the surface of Bacillus subtilis spores.

Krzysztof Hinc, Rachele Isticato, Marcin Dembek, Joanna Karczewska, Adam Iwanicki, Grazyna Peszyńska-Sularz, Maurilio De Felice, Michał Obuchowski, Ezio Ricca

Open access · goldAbstract read
In one paragraph

Article in Microbial cell factories, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
5.1field-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

36 citing papers in PubMed, 83 citations in OpenAlex.

  1. Review
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  6. The Bacterial Spore as a Mucosal Vaccine Delivery System.International journal of molecular sciences · 2023
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  8. Computational and structural biotechnology journal · 2023
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  15. Article
  16. Advances on systems metabolic engineering ofSynthetic and systems biotechnology · 2020
    Article
  17. Article
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  19. Review
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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

9 authors at 3 institutions in 2 countries.

Krzysztof HincDepartment of Structural and Functional Biology, Federico II University of Naples, via Cinthia 4, Naples 80126, Italy.
Rachele Isticato
Marcin Dembek
Joanna Karczewska
Adam Iwanicki
Grazyna Peszyńska-Sularz
Maurilio De Felice
Michał Obuchowski
Ezio Ricca
Gdańsk Medical University · PLUniversity of Naples Federico II · ITFederico II University Hospital · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe bacterial endospore (spore) has recently been proposed as a new surface display system. Antigens and enzymes have been successfully exposed on the surface layers of the Bacillus subtilis spore, but only in a few cases the efficiency of expression and the effective surface display and have been determined. We used this heterologous expression system to produce the A subunit of the urease of the animal pathogen Helicobater acinonychis. Ureases are multi-subunit enzymes with a central role in the virulence of various bacterial pathogens and necessary for colonization of the gastric mucosa by the human pathogen H. pylori. The urease subunit UreA has been recognized as a major antigen, able to induce high levels of protection against challenge infections.

resultsWe expressed UreA from H. acinonychis on the B. subtilis spore coat by using three different spore coat proteins as carriers and compared the efficiency of surface expression and surface display obtained with the three carriers. A combination of western-, dot-blot and immunofluorescence microscopy allowed us to conclude that, when fused to CotB, UreA is displayed on the spore surface (ca. 1 x 10(3) recombinant molecules per spore), whereas when fused to CotC, although most efficiently expressed (7-15 x 10(3) recombinant molecules per spore) and located in the coat layer, it is not displayed on the surface. Experiments with CotG gave results similar to those with CotC, but the CotG-UreA recombinant protein appeared to be partially processed.

conclusionUreA was efficiently expressed on the spore coat of B. subtilis when fused to CotB, CotC or CotG. Of these three coat proteins CotC allows the highest efficiency of expression, whereas CotB is the most appropriate for the display of heterologous proteins on the spore surface.

Indexed as

Gene ExpressionBacillus subtilisBacterial ProteinsHelicobacterRecombinant Fusion ProteinsSpores, BacterialUreaseBacterial ProteinsRecombinant Fusion ProteinsUrease

Identifiers

PMID20082702
PMCPMC2841587
OpenAlexW2135624707

What OpenQuestion holds

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LicenceCC BY
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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.