Evidence map›Paper›PMID 25384476›Full record

ArticleJournal of bacteriology2015

HtrC is involved in proteolysis of YpeB during germination of Bacillus anthracis and Bacillus subtilis spores.

Casey B Bernhards, Yan Chen, Hannah Toutkoushian, David L Popham

Open access · bronzeAbstract read
In one paragraph

Article in Journal of bacteriology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.9field-weighted citation impact, top 13% 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

12 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. HtrAs are essential for the survival of the haloarchaeonApplied and environmental microbiology · 2024
    Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Membrane Proteomes and Ion Transporters inJournal of bacteriology · 2019
    Article
  10. Lytic transglycosylases: concinnity in concision of the bacterial cell wall.Critical reviews in biochemistry and molecular biology · 2017
    Review
  11. Article
  12. 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 1 country.

Casey B BernhardsDepartment of Biological Sciences, Virginia Tech, Blacksburg, Virginia, USA.
Yan ChenDepartment of Biological Sciences, Virginia Tech, Blacksburg, Virginia, USA.
Hannah ToutkoushianDepartment of Biological Sciences, Virginia Tech, Blacksburg, Virginia, USA.
David L PophamDepartment of Biological Sciences, Virginia Tech, Blacksburg, Virginia, USA dpopham@vt.edu.
Virginia Tech · US

Funding

Stabilization and regulation of a Bacillus anthracis spore lytic enzymeR21AI109111 · NIAID · VIRGINIA POLYTECHNIC INST AND ST UNIV · PI POPHAM, DAVID L · 2014 to 2015
$413k
Proteomic Analyses of Clostridium difficile Spore Germination ApparatusR21AI088298 · NIAID · VIRGINIA POLYTECHNIC INST AND ST UNIV · PI HELM, RICHARD, JENSEN, RODERICK V · 2010 to 2011
$410k
NIAID NIH HHS R21 AI088298NIAID NIH HHS R21AI088298NIAID NIH HHS R21 AI109111
6 · The paper itself

Abstract

Bacterial endospores can remain dormant for decades yet can respond to nutrients, germinate, and resume growth within minutes. An essential step in the germination process is degradation of the spore cortex peptidoglycan wall, and the SleB protein in Bacillus species plays a key role in this process. Stable incorporation of SleB into the spore requires the YpeB protein, and some evidence suggests that the two proteins interact within the dormant spore. Early during germination, YpeB is proteolytically processed to a stable fragment. In this work, the primary sites of YpeB cleavage were identified in Bacillus anthracis, and it was shown that the stable products are comprised of the C-terminal domain of YpeB. Modification of the predominant YpeB cleavage sites reduced proteolysis, but cleavage at other sites still resulted in loss of full-length YpeB. A B. anthracis strain lacking the HtrC protease did not generate the same stable YpeB products. In B. anthracis and Bacillus subtilis htrC mutants, YpeB was partially stabilized during germination but was still degraded at a reduced rate by other, unidentified proteases. Purified HtrC cleaved YpeB to a fragment similar to that observed in vivo, and this cleavage was stimulated by Mn(2+) or Ca(2+) ions. A lack of HtrC did not stabilize YpeB or SleB during spore formation in the absence of the partner protein, indicating other proteases are involved in their degradation during sporulation.

Indexed as

Bacillus anthracisBacillus subtilisBacterial ProteinsGene Expression Regulation, BacterialSpores, BacterialBacterial Proteins

Identifiers

PMID25384476
PMCPMC4272601
OpenAlexW2165600740

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.