Evidence map›Paper›PMID 35597553›Full record

ArticleJournal of molecular biology2022

Identification of Functional Spo0A Residues Critical for Sporulation in Clostridioides difficile.

Michael A DiCandia, Adrianne N Edwards, Joshua B Jones, Grace L Swaim, Brooke D Mills, Shonna M McBride

Open access · greenAbstract read
In one paragraph

Article in Journal of molecular biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.4field-weighted citation impact, top 9% 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

19 citing papers in PubMed, 25 citations in OpenAlex.

  1. Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2026
    Article
  2. Clostridioides difficile pathogenesis and control.Nature reviews. Microbiology · 2026
    Review
  3. Article
  4. Nanoluciferase-Based Reporters for Clostridioides difficile.Methods in molecular biology (Clifton, N.J.) · 2026
    Article
  5. Article
  6. Article
  7. Uncovering newMicrobiology spectrum · 2024
    Article
  8. Article
  9. The small acid-soluble proteins ofbioRxiv : the preprint server for biology · 2024
    Article
  10. Article
  11. Review
  12. The pH-responsive SmrR-SmrT system modulatesInfection and immunity · 2024
    Article
  13. Clostridioides difficile Sporulation.Advances in experimental medicine and biology · 2024
    Review
  14. Article
  15. Article
  16. The RgaS-RgaR two-component system promotesbioRxiv : the preprint server for biology · 2023
    Article
  17. Non-Toxin-BasedPathogens (Basel, Switzerland) · 2023
    Article
  18. Microbiology (Reading, England) · 2023
    Review
  19. Comparative biofilm-forming ability betweenFrontiers in cellular and infection microbiology · 2022
    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

6 authors at 2 institutions in 1 country.

Michael A DiCandiaDepartment of Microbiology and Immunology, Emory University School of Medicine, Emory Antibiotic Resistance Center, Atlanta, GA, USA. Electronic address: https://twitter.com/mdicandia.
Adrianne N EdwardsDepartment of Microbiology and Immunology, Emory University School of Medicine, Emory Antibiotic Resistance Center, Atlanta, GA, USA.
Joshua B JonesDepartment of Microbiology and Immunology, Emory University School of Medicine, Emory Antibiotic Resistance Center, Atlanta, GA, USA.
Grace L SwaimDepartment of Neuroscience and Cell Biology, Yale University Graduate School of Arts and Sciences, New Haven, CT, USA.
Brooke D MillsDepartment of Microbiology and Immunology, Emory University School of Medicine, Emory Antibiotic Resistance Center, Atlanta, GA, USA.
Shonna M McBrideDepartment of Microbiology and Immunology, Emory University School of Medicine, Emory Antibiotic Resistance Center, Atlanta, GA, USA. Electronic address: shonna.mcbride@emory.edu.
Emory University · USYale University · US

Funding

PREDOCTORAL TRAINING PROGRAM IN GENETICST32GM008490 · NIGMS · EMORY UNIVERSITY · PI BOSS, JEREMY M. · 1993 to 2022
$8.0M
Host-induced Initiation of Clostridium difficile SporulationR01AI116933 · NIAID · EMORY UNIVERSITY · PI SHONNA M. MCBRIDE · 2015 to 2026
$4.8M
Mechanisms Underlying Nutrient-Mediated Sporulation in C. difficileR01AI156052 · NIAID · EMORY UNIVERSITY · PI MCBRIDE, SHONNA M. · 2021 to 2025
$2.4M
NIAID NIH HHS R01 AI116933NIAID NIH HHS R01 AI156052NIGMS NIH HHS T32 GM008490
6 · The paper itself

Abstract

Clostridioides difficile is an anaerobic, Gram-positive pathogen that is responsible for C. difficile infection (CDI). To survive in the environment and spread to new hosts, C. difficile must form metabolically dormant spores. The formation of spores requires activation of the transcription factor Spo0A, which is the master regulator of sporulation in all endospore-forming bacteria. Though the sporulation initiation pathway has been delineated in the Bacilli, including the model spore-former Bacillus subtilis, the direct regulators of Spo0A in C. difficile remain undefined. C. difficile Spo0A shares highly conserved protein interaction regions with the B. subtilis sporulation proteins Spo0F and Spo0A, although many of the interacting factors present in B. subtilis are not encoded in C. difficile. To determine if comparable Spo0A residues are important for C. difficile sporulation initiation, site-directed mutagenesis was performed at conserved receiver domain residues and the effects on sporulation were examined. Mutation of residues important for homodimerization and interaction with positive and negative regulators of B. subtilis Spo0A and Spo0F impacted C. difficile Spo0A function. The data also demonstrated that mutation of many additional conserved residues altered C. difficile Spo0A activity, even when the corresponding Bacillus interacting proteins are not apparent in the C. difficile genome. Finally, the conserved aspartate residue at position 56 of C. difficile Spo0A was determined to be the phosphorylation site that is necessary for Spo0A activation. The finding that Spo0A interacting motifs maintain functionality suggests that C. difficile Spo0A interacts with yet unidentified proteins that regulate its activity and control spore formation.

Indexed as

Bacterial ProteinsClostridioides difficileBacillusBacillus subtilisGene Expression Regulation, BacterialSpores, BacterialTranscription FactorsBacterial ProteinsTranscription FactorsBacillus subtilisClostridiumSpo0ASpo0FSpore

Identifiers

PMID35597553
PMCPMC9327077
OpenAlexW4280640790

What OpenQuestion holds

Textmetadata
LicenceTDM
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.