Evidence map›Paper›PMID 18390656›Full record

ArticleJournal of bacteriology2008

Growth of Escherichia coli: significance of peptidoglycan degradation during elongation and septation.

Tsuyoshi Uehara, James T Park

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.

0numbers the graph read from it
0cells of the map it votes in
65citing 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

65 citing papers in PubMed, 103 citations in OpenAlex.

  1. Article
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  4. Review
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  8. Review
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  12. The Wsp system ofProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  13. Review
  14. Review
  15. Article
  16. TheInternational journal of molecular sciences · 2021
    Article
  17. Article
  18. The LpoA activator is required to stimulate the peptidoglycan polymerase activity of its cognate cell wall synthase PBP1a.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  19. Robust surface-to-mass coupling and turgor-dependent cell width determine bacterial dry-mass density.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  20. Article

5 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.

Tsuyoshi UeharaDepartment of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, Massachusetts 02111, USA tsuyoshi_uehara@hms.harvard.edu
James T Park
Tufts University · US

Funding

MUROPEPTIDE RECYCLING PATHWAY &BETA LACTAMASE INDUCTIONR01GM051610 · NIGMS · TUFTS UNIVERSITY BOSTON · PI PARK, JAMES T · 1996 to 2006
$975k
NIGMS NIH HHS GM51610NIGMS NIH HHS R01 GM051610
6 · The paper itself

Abstract

We have found a striking difference between the modes of action of amdinocillin (mecillinam) and compound A22, both of which inhibit cell elongation. This was made possible by employment of a new method using an Escherichia coli peptidoglycan (PG)-recycling mutant, lacking ampD, to analyze PG degradation during cell elongation and septation. Using this method, we have found that A22, which is known to prevent MreB function, strongly inhibited PG synthesis during elongation. In contrast, treatment of elongating cells with amdinocillin, which inhibits penicillin-binding protein 2 (PBP2), allowed PG glycan synthesis to proceed at a nearly normal rate with concomitant rapid degradation of the new glycan strands. By treating cells with A22 to inhibit sidewall synthesis, the method could also be applied to study septum synthesis. To our surprise, over 30% of newly synthesized septal PG was degraded during septation. Thus, excess PG sufficient to form at least one additional pole was being synthesized and rapidly degraded during septation. We propose that during cell division, rapid removal of the excess PG serves to separate the new poles of the daughter cells. We have also employed this new method to demonstrate that PBP2 and RodA are required for the synthesis of glycan strands during elongation and that the periplasmic amidases that aid in cell separation are minor players, cleaving only one-sixth of the PG that is turned over by the lytic transglycosylases.

Indexed as

AmdinocillinAmidohydrolasesAnti-Bacterial AgentsBacterial ProteinsCell WallEscherichia coliEscherichia coli ProteinsGene Expression Regulation, BacterialMembrane ProteinsMutationN-Acetylmuramoyl-L-alanine AmidasePenicillin-Binding ProteinsPeptidoglycanPeriplasmThiourea2,6-dichlorobenzylthiopseudoureaAmdinocillinAmidohydrolasesAmpD protein, BacteriaAnti-Bacterial AgentsBacterial ProteinsEscherichia coli ProteinsMembrane ProteinsmrdB protein, E coliN-Acetylmuramoyl-L-alanine AmidasePenicillin-Binding ProteinsPeptidoglycanThiourea

Identifiers

PMID18390656
PMCPMC2395050
OpenAlexW1985044088

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.