Evidence map›Paper›PMID 16484182›Full record

ArticleJournal of bacteriology2006

Developmental control of a parAB promoter leads to formation of sporulation-associated ParB complexes in Streptomyces coelicolor.

Dagmara Jakimowicz, Sebastien Mouz, Jolanta Zakrzewska-Czerwinska, Keith F Chater

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
3.5field-weighted citation impact, top 8% 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

26 citing papers in PubMed, 53 citations in OpenAlex.

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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

4 authors at 3 institutions in 2 countries.

Dagmara JakimowiczLudwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, ul. Weigla 12, 53-114 Wrocław, Poland. jakimow@iitd.pan.wroc.pl
Sebastien Mouz
Jolanta Zakrzewska-Czerwinska
Keith F Chater
Norwich Research Park · GBJohn Innes Centre · GBLudwik Hirszfeld Institute of Immunology and Experimental Therapy · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Streptomyces coelicolor partitioning protein ParB binds to numerous parS sites in the oriC-proximal part of the linear chromosome. ParB binding results in the formation of large complexes, which behave differentially during the complex life cycle (D. Jakimowicz, B. Gust, J. Zakrzewska-Czerwinska, and K. F. Chater, J. Bacteriol. 187:3572-3580, 2005). Here we have analyzed the transcriptional regulation that underpins this developmentally specific behavior. Analysis of promoter mutations showed that the irregularly spaced complexes present in vegetative hyphae are dependent on the constitutive parABp(1) promoter, while sporulation-specific induction of the promoter parABp(2) is required for the assembly of arrays of ParB complexes in aerial hyphae and thus is necessary for efficient chromosome segregation. Expression from parABp(2) depended absolutely on two sporulation regulatory genes, whiA and whiB, and partially on two others, whiH and whiI, all four of which are needed for sporulation septation. Because of this pattern of dependence, we investigated the transcription of these four whi genes in whiA and whiB mutants, revealing significant regulatory interplay between whiA and whiB. A strain in which sporulation septation (but not vegetative septation) was blocked by mutation of a sporulation-specific promoter of ftsZ showed close to wild-type induction of parABp(2) and formed fairly regular ParB-enhanced green fluorescent protein foci in aerial hyphae, ruling out strong morphological coupling or checkpoint regulation between septation and DNA partitioning during sporulation. A model for developmental regulation of parABp(2) expression is presented.

Indexed as

Gene Expression Regulation, BacterialBacterial ProteinsChromosomes, BacterialEndodeoxyribonucleasesOperonPromoter Regions, GeneticSpores, BacterialStreptomyces coelicolorTranscription FactorsBacterial Proteinschromosome partition proteins, bacterialEndodeoxyribonucleasesTranscription FactorsWhiA protein, Streptomyces coelicolorwhiB protein, Streptomyces

Identifiers

PMID16484182
PMCPMC1426544
OpenAlexW2097308701

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.