Evidence map›Paper›PMID 23543708›Full record

ArticleJournal of bacteriology2013

Activity and regulation of various forms of CwlJ, SleB, and YpeB proteins in degrading cortex peptidoglycan of spores of Bacillus species in vitro and during spore germination.

Yunfeng Li, Xuan Y Butzin, Andrew Davis, Barbara Setlow, George Korza, Fatma Işik Üstok, Graham Christie, Peter Setlow, Bing Hao

Open access · bronzeAbstract read
In one paragraph

Article in Journal of bacteriology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
5.1field-weighted citation impact, top 4% 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

27 citing papers in PubMed, 53 citations in OpenAlex.

  1. mBio · 2026
    Article
  2. Article
  3. Review
  4. bioRxiv : the preprint server for biology · 2026
    Article
  5. Structural and functional analysis ofMicrobiology (Reading, England) · 2025
    Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Structural and functional analyses of the N-terminal domain of the A subunit of aProceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  15. Article
  16. Article
  17. Article
  18. Lytic transglycosylases: concinnity in concision of the bacterial cell wall.Critical reviews in biochemistry and molecular biology · 2017
    Review
  19. Analysis of the Germination of IndividualFrontiers in microbiology · 2017
    Article
  20. Review
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

9 authors at 2 institutions in 2 countries.

Yunfeng LiDepartment of Molecular, Microbial and Structural Biology, University of Connecticut Health Center, Farmington, Connecticut, USA.
Xuan Y Butzin
Andrew Davis
Barbara Setlow
George Korza
Fatma Işik Üstok
Graham Christie
Peter Setlow
Bing Hao
UConn Health · USUniversity of Cambridge · GB

Funding

Wellcome Trust 100140
6 · The paper itself

Abstract

Germination of Bacillus spores requires degradation of a modified layer of peptidoglycan (PG) termed the spore cortex by two redundant cortex-lytic enzymes (CLEs), CwlJ and SleB, plus SleB's partner protein, YpeB. In this study, in vitro and in vivo analyses have been used to clarify the roles of individual SleB and YpeB domains in PG degradation. Purified mature Bacillus cereus SleB without its signal sequence (SleB(M)) and the SleB C-terminal catalytic domain (SleB(C)) efficiently triggered germination of decoated Bacillus megaterium and Bacillus subtilis spores lacking endogenous CLEs; previously, SleB's N-terminal domain (SleB(N)) was shown to bind PG but have no enzymatic activity. YpeB lacking its putative membrane anchoring sequence (YpeB(M)) or its N- and C-terminal domains (YpeB(N) and YpeB(C)) alone did not exhibit degradative activity, but YpeB(N) inhibited SleB(M) and SleB(C) activity in vitro. The severe germination defect of B. subtilis cwlJ sleB or cwlJ sleB ypeB spores was complemented by ectopic expression of full-length sleB [sleB(FL)] and ypeB [ypeB(FL)], but normal levels of SleB(FL) in spores required normal spore levels of YpeB(FL) and vice versa. sleB(FL) or ypeB(FL) alone, sleB(FL) plus ypeB(C) or ypeB(N), and sleB(C) or sleB(N) plus ypeB(FL) did not complement the cortex degradation defect in cwlJ sleB ypeB spores. In addition, ectopic expression of sleB(FL) or cwlJ(FL) with a Glu-to-Gln mutation in a predicted active-site residue failed to restore the germination of cwlJ sleB spores, supporting the role of this invariant glutamate as the key catalytic residue in SleB and CwlJ.

Indexed as

Gene Expression Regulation, EnzymologicAmidohydrolasesAmino Acid SubstitutionBacillusBacterial ProteinsCarrier ProteinsCell WallGene Expression Regulation, BacterialHydrolasesIsoenzymesMicrobial ViabilityMutationPeptidoglycanProtein Structure, TertiarySpores, BacterialAmidohydrolasesBacterial ProteinsCarrier ProteinsHydrolasesIsoenzymesPeptidoglycanSleB protein, Bacillus

Identifiers

PMID23543708
PMCPMC3676066
OpenAlexW2137797458

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.