Evidence map›Paper›PMID 19756048›Full record

ArticleMolecular systems biology2009

Engineering the Salmonella type III secretion system to export spider silk monomers.

Daniel M Widmaier, Danielle Tullman-Ercek, Ethan A Mirsky, Rena Hill, Sridhar Govindarajan, Jeremy Minshull, Christopher A Voigt

Abstract read
In one paragraph

Article in Molecular systems biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed
–field-weighted citation impact
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

69 citing papers in PubMed.

  1. Article
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  6. Evaluation of theFrontiers in bioengineering and biotechnology · 2025
    Article
  7. Exploitation of Biodiversity in Bioeconomy: Examples, Opportunities, and Challenges.Advances in biochemical engineering/biotechnology · 2025
    Review
  8. High-yield spidroin mimics for bioinspired fibers via computational design.Frontiers in bioengineering and biotechnology · 2025
    Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Article
  19. Review
  20. Article

9 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

7 authors.

Daniel M WidmaierChemistry and Chemical Biology Graduate Program, University of California--San Francisco, San Francisco, CA 94110, USA.
Danielle Tullman-Ercek
Ethan A Mirsky
Rena Hill
Sridhar Govindarajan
Jeremy Minshull
Christopher A Voigt

Funding

Cellular Control:Synthetic Signaling/Motility (RMI)PN2EY016546 · NEI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LIM, WENDELL A · 2005 to 2014
$16.0M
System Dynamics of the Salmonella Virulence Regulatory NetworkR01AI067699 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI VOIGT, CHRISTOPHER A · 2007 to 2011
$1.5M
System Dynamics of the Salmonella Virulence Regulatory NetworkR56AI067699 · NIAID · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI VOIGT, CHRISTOPHER A · 2012 to 2012
$279k
Engineering Synthetic Cell Motility Systems (RMI)PN1EY016546 · NEI · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI LIM, WENDELL A · 2004 to 2004
$76k
NEI NIH HHS EY016546,NEI NIH HHS PN1 EY016546NEI NIH HHS PN2 EY016546NIAID NIH HHS AI067699NIAID NIH HHS R01 AI067699NIAID NIH HHS R56 AI067699
6 · The paper itself

Abstract

The type III secretion system (T3SS) exports proteins from the cytoplasm, through both the inner and outer membranes, to the external environment. Here, a system is constructed to harness the T3SS encoded within Salmonella Pathogeneity Island 1 to export proteins of biotechnological interest. The system is composed of an operon containing the target protein fused to an N-terminal secretion tag and its cognate chaperone. Transcription is controlled by a genetic circuit that only turns on when the cell is actively secreting protein. The system is refined using a small human protein (DH domain) and demonstrated by exporting three silk monomers (ADF-1, -2, and -3), representative of different types of spider silk. Synthetic genes encoding silk monomers were designed to enhance genetic stability and codon usage, constructed by automated DNA synthesis, and cloned into the secretion control system. Secretion rates up to 1.8 mg l(-1) h(-1) are demonstrated with up to 14% of expressed protein secreted. This work introduces new parts to control protein secretion in Gram-negative bacteria, which will be broadly applicable to problems in biotechnology.

Indexed as

Amino Acid SequenceAnimalsBacterial ProteinsFibroinsHumansMembrane ProteinsModels, BiologicalMolecular Sequence DataProtein EngineeringProtein TransportRecombinant Fusion ProteinsSalmonellaSequence AlignmentSignal TransductionSpidersBacterial ProteinsFibroinsMembrane ProteinsRecombinant Fusion ProteinsSpi1 protein, SalmonellaSPI-2 protein, Salmonella

Identifiers

PMID19756048
PMCPMC2758716

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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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.