Evidence map›Paper›PMID 32458540›Full record

ArticleMolecular microbiology2020

Inhibition of Escherichia coli chromosome replication by rifampicin treatment or during the stringent response is overcome by de novo DnaA protein synthesis.

Leise Riber, Anders Løbner-Olesen

Abstract read
In one paragraph

Article in Molecular microbiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
–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

18 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
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  7. Review
  8. Regulatory elements coordinating initiation of chromosome replication to theProceedings of the National Academy of Sciences of the United States of America · 2023
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  9. Review
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  15. Energy Starvation Induces a Cell Cycle Arrest inFrontiers in molecular biosciences · 2021
    Article
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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.

Leise RiberDepartment of Biology, University of Copenhagen, Copenhagen, Denmark.ORCID 0000-0003-4793-6095
Anders Løbner-OlesenDepartment of Biology, University of Copenhagen, Copenhagen, Denmark.ORCID 0000-0002-0344-6417

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Initiation of Escherichia coli chromosome replication is controlled by the DnaA initiator protein. Both rifampicin-mediated inhibition of transcription and ppGpp-induced changes in global transcription stops replication at the level of initiation. Here, we show that continued DnaA protein synthesis allows for replication initiation both during the rifampicin treatment and during the stringent response when the ppGpp level is high. A reduction in or cessation of de novo DnaA synthesis, therefore, causes the initiation arrest in both cases. In accordance with this, inhibition of translation with chloramphenicol also stops initiations. The initiation arrest caused by rifampicin was faster than that caused by chloramphenicol, despite of the latter inhibiting DnaA accumulation immediately. During chloramphenicol treatment transcription is still ongoing and we suggest that transcriptional events in or near the origin, that is, transcriptional activation, can allow for a few extra initiations when DnaA becomes limiting. We suggest, for both rifampicin treated cells and for cells accumulating ppGpp, that a turn-off of initiation from oriC requires a stop in de novo DnaA synthesis and that an additional lack of transcriptional activation enhances this process, that is, leads to a faster initiation stop.

Indexed as

Anti-Bacterial AgentsBacterial ProteinsChloramphenicolChromosomes, BacterialDNA-Binding ProteinsDNA ReplicationEscherichia coliEscherichia coli ProteinsGuanosine TetraphosphateReplication OriginRifampinStress, PhysiologicalTranscriptional ActivationAnti-Bacterial AgentsBacterial ProteinsChloramphenicolDnaA protein, BacteriaDNA-Binding ProteinsEscherichia coli ProteinsGuanosine TetraphosphateRifampinDnaAEscherichia colippGppreplication initiationrifampicinstringent responsetranscriptional activation

Identifiers

PMID32458540
PMCPMC7818497

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Registered trials

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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.