Evidence map›Paper›PMID 19390092›Full record

ArticleGenes & development2009

A feeding tube model for activation of a cell-specific transcription factor during sporulation in Bacillus subtilis.

Amy H Camp, Richard Losick

Open access · diamondAbstract read
In one paragraph

Article in Genes & development, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers.

0numbers the graph read from it
0cells of the map it votes in
90citing 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

90 citing papers in PubMed, 132 citations in OpenAlex.

  1. Article
  2. Evolutionary bioenergetics of sporulation.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Clostridioides difficile Sporulation.Advances in experimental medicine and biology · 2024
    Review
  10. Article
  11. Review
  12. High Resolution Analysis of Proteome Dynamics duringInternational journal of molecular sciences · 2021
    Article
  13. Article
  14. Review
  15. Article
  16. Milestones inMicrobial cell (Graz, Austria) · 2020
    Review
  17. Article
  18. Article
  19. Review
  20. Article

30 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

2 authors at 1 institution in 1 country.

Amy H CampDepartment of Molecular and Cellular Biology, Harvard University, Cambridge, Massachustts 02138, USA.
Richard Losick
Harvard University · US

Funding

Role of RNA Polymerase in Bacterial DifferentionR01GM018568 · NIGMS · HARVARD UNIVERSITY · PI LOSICK, RICHARD MARC · 1985 to 2018
$11.5M
ROLE OF RNA POLYMERASE IN BACTERIAL DIFFERENTIATIONR37GM018568 · NIGMS · HARVARD UNIVERSITY · PI LOSICK, RICHARD MARC · 1990 to 1999
–
NIGMS NIH HHS GM18568NIGMS NIH HHS R01 GM018568NIGMS NIH HHS R37 GM018568
6 · The paper itself

Abstract

Spore formation by Bacillus subtilis takes place in a sporangium consisting of two chambers, the forespore and the mother cell, which are linked by pathways of intercellular communication. One pathway, which couples the activation of the forespore transcription factor sigma(G) to the action of sigma(E) in the mother cell, has remained mysterious. Traditional models hold that sigma(E) initiates a signal transduction pathway that specifically activates sigma(G) in the forespore. Recent experiments indicating that the mother cell and forespore are joined by a channel have led to the suggestion that a specific regulator of sigma(G) is transported from the mother cell into the forespore. As we report here, however, the requirement for the channel is not limited to sigma(G). Rather, it is also required for the persistent activity of the early-acting forespore transcription factor sigma(F) as well as that of a heterologous RNA polymerase (that of phage T7). We infer that macromolecular synthesis in the forespore becomes dependent on the channel at intermediate stages of development. We propose that the channel is a gap junction-like feeding tube through which the mother cell nurtures the developing spore by providing small molecules needed for biosynthetic activity, including sigma(G)-directed gene activation.

Indexed as

Gene Expression Regulation, BacterialBacillus subtilisBacterial ProteinsCalcium ChannelsChromosomes, BacterialConserved SequenceDNA-Directed RNA PolymerasesMutationProtein Structure, TertiarySigma FactorSpores, BacterialViral ProteinsBacterial Proteinsbacteriophage T7 RNA polymeraseCalcium ChannelsDNA-Directed RNA PolymerasesQ protein, BacteriaSigma FactorViral Proteins

Identifiers

PMID19390092
PMCPMC2675869
OpenAlexW1994868431

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.