Evidence map›Paper›PMID 15087499›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2004

BofA protein inhibits intramembrane proteolysis of pro-sigmaK in an intercompartmental signaling pathway during Bacillus subtilis sporulation.

Ruanbao Zhou, Lee Kroos

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
2.7field-weighted citation impact, top 11% 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

35 citing papers in PubMed, 52 citations in OpenAlex.

  1. Article
  2. Inhibitory proteins ofJournal of bacteriology · 2025
    Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. NagRFrontiers in microbiology · 2018
    Article
  14. Interaction of intramembrane metalloprotease SpoIVFB with substrate Pro-σProceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  15. Article
  16. AAA+ Machines of Protein Destruction in Mycobacteria.Frontiers in molecular biosciences · 2017
    Review
  17. Article
  18. Regulated proteolysis in bacterial development.FEMS microbiology reviews · 2014
    Review
  19. Review
  20. 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

2 authors at 1 institution in 1 country.

Ruanbao ZhouDepartment of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824, USA.
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 GM43585NIGMS NIH HHS R01 GM043585
6 · The paper itself

Abstract

Bacillus subtilis is a bacterium that undergoes a developmental program of sporulation in response to starvation. At the core of the program are sigma factors, whose regulated spatiotemporal activation controls much of the gene expression. Activation of pro-sigma(K) in the mother cell compartment involves regulated intramembrane proteolysis (RIP) in response to a signal from the forespore. RIP is a poorly understood process that is conserved in prokaryotes and eukaryotes. Here, we report a powerful system for studying RIP of pro-sigma(K). Escherichia coli was engineered to coexpress the putative membrane-embedded metalloprotease SpoIVFB with pro-sigma(K) and potential inhibitors of RIP. Overproduction of SpoIVFB and pro-sigma(K) in E. coli allowed accurate and abundant proteolytic processing of pro-sigma(K) with the characteristics expected for SpoIVFB acting as an intramembrane-cleaving protease (I-Clip). Coexpression of BofA in this system led to formation of a BofA-SpoIVFB complex and marked inhibition of pro-sigma(K) processing. Mutational analysis identified amino acids in BofA that are necessary for complex formation and inhibition of processing, leading us to propose that BofA inhibits SpoIVFB metalloprotease activity by providing a metal ligand, analogous to the cysteine switch mechanism of matrix metalloprotease regulation. The approach described herein should be applicable to studies of other RIP events and amenable to developing in vitro assays for I-Clips.

Indexed as

Signal TransductionSpores, BacterialBacillus subtilisBacterial ProteinsChromatography, AffinityEscherichia coliHydrolysisMembrane ProteinsSigma FactorTranscription FactorsBacterial ProteinsbofA protein, Bacillus subtilisMembrane Proteinspro-sigmaK protein, Bacillus subtilisSigma FactorTranscription Factors

Identifiers

PMID15087499
PMCPMC404054
OpenAlexW1980265680

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.