Evidence map›Paper›PMID 18378688›Full record

ArticleThe Journal of biological chemistry2008

Evidence that the Bacillus subtilis SpoIIGA protein is a novel type of signal-transducing aspartic protease.

Daisuke Imamura, Ruanbao Zhou, Michael Feig, Lee Kroos

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.3field-weighted citation impact, top 18% 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

20 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Fatty acid synthesis and utilization in gram-positive bacteria: insights fromMicrobiology and molecular biology reviews : MMBR · 2025
    Review
  5. Article
  6. Clostridioides difficile Sporulation.Advances in experimental medicine and biology · 2024
    Review
  7. Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Mycobacterium tuberculosis serine protease Rv3668c can manipulate the host-pathogen interaction via Erk-NF-κB axis-mediated cytokine differential expression.Journal of interferon & cytokine research : the official journal of the International Society for Interferon and Cytokine Research · 2014
    Article
  13. Article
  14. Spore formation in Bacillus subtilis.Environmental microbiology reports · 2014
    Review
  15. Regulated proteolysis in bacterial development.FEMS microbiology reviews · 2014
    Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. Pepsin homologues in bacteria.BMC genomics · 2009
    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

4 authors at 1 institution in 2 countries.

Daisuke ImamuraDepartment of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824, USA.
Ruanbao Zhou
Michael Feig
Lee Kroos
Michigan State University · US

Funding

SWITCH GOVERNING BACILLUS MOTHER CELL GENE EXPRESSIONR01GM043585 · NIGMS · MICHIGAN STATE UNIVERSITY · PI KROOS, LEE R · 1995 to 2021
$4.8M
TEMPORAL AND SPATIAL GENE REGULATION--BACILLUS SUBTILISR29GM043585 · NIGMS · MICHIGAN STATE UNIVERSITY · PI KROOS, LEE R · 1990 to 1994
–
NIGMS NIH HHS GM 43585NIGMS NIH HHS R01 GM043585
6 · The paper itself

Abstract

The bacterium Bacillus subtilis undergoes endospore formation in response to starvation. sigma factors play a key role in spatiotemporal regulation of gene expression during development. Activation of sigma factors is coordinated by signal transduction between the forespore and the mother cell. sigma(E) is produced as pro-sigma(E), which is activated in the mother cell by cleavage in response to a signal from the forespore. We report that expression of SpoIIR, a putative signaling protein normally made in the forespore, and SpoIIGA, a putative protease, is necessary and sufficient for accurate, rapid, and abundant processing of pro-sigma(E) to sigma(E) in Escherichia coli. Modeling and mutational analyses provide evidence that SpoIIGA is a novel type of aspartic protease whose C-terminal half forms a dimer similar to the human immunodeficiency virus type 1 protease. Previous studies suggest that the N-terminal half of SpoIIGA is membrane-embedded. We found that SpoIIGA expressed in E. coli is membrane-associated and that after detergent treatment SpoIIGA was self-associated. Also, SpoIIGA interacts with SpoIIR. The results support a model in which SpoIIGA forms inactive dimers or oligomers, and interaction of SpoIIR with the N-terminal domain of SpoIIGA on one side of a membrane causes a conformational change that allows formation of active aspartic protease dimer in the C-terminal domain on the other side of the membrane, where it cleaves pro-sigma(E).

Indexed as

Aspartic Acid EndopeptidasesBacillus subtilisBacterial ProteinsDimerizationEscherichia coliGene Expression Regulation, BacterialGene Expression Regulation, EnzymologicMembrane ProteinsModels, MolecularPeptide HydrolasesProtein PrecursorsProtein Structure, QuaternaryProtein Structure, TertiarySigma FactorSignal TransductionAspartic Acid EndopeptidasesBacterial ProteinsMembrane ProteinsPeptide HydrolasesProtein PrecursorsSigma FactorSpoIIGA protein, Bacillus subtilisspoIIR protein, Bacillus subtilissporulation-specific sigma factors

Identifiers

PMID18378688
PMCPMC2397457
OpenAlexW2037803546

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.