Evidence map›Paper›PMID 15090496›Full record

ArticleJournal of bacteriology2004

Identification of PimR as a positive regulator of pimaricin biosynthesis in Streptomyces natalensis.

Nuria Antón, Marta V Mendes, Juan F Martín, Jesús F Aparicio

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
3.1field-weighted citation impact, top 10% 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

39 citing papers in PubMed, 125 citations in OpenAlex.

  1. Article
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    Article
  15. Bidirectional Regulation of AdpAFrontiers in microbiology · 2018
    Article
  16. Article
  17. Review
  18. Review
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  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

4 authors at 2 institutions in 2 countries.

Nuria AntónInstitute of Biotechnology INBIOTEC, Parque Científico de León, Avenida del Real no. 1, 24006 León, Spain.
Marta V Mendes
Juan F Martín
Jesús F Aparicio
Czech Academy of Sciences, Institute of Biotechnology · CZInstituto de Biotecnología de León · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sequencing of the DNA region on the left fringe of the pimaricin gene cluster revealed the presence of a 3.6-kb gene, pimR, whose deduced product (1,198 amino acid residues) was found to have amino acid sequence homology with bacterial regulatory proteins. Database comparisons revealed that PimR represents the archetype of a new class of regulators, combining a Streptomyces antibiotic regulatory protein (SARP)-like N-terminal section with a C-terminal half homologous to guanylate cyclases and large ATP-binding regulators of the LuxR family. Gene replacement of pimR from Streptomyces natalensis chromosome results in a complete loss of pimaricin production, suggesting that PimR is a positive regulator of pimaricin biosynthesis. Gene expression analysis by reverse transcriptase PCR (RT-PCR) of the pimaricin gene cluster revealed that S. natalensis DeltaPimR shows no expression at all of the cholesterol oxidase-encoding gene pimE, and very low level transcription of the remaining genes of the cluster except for the mutant pimR gene, thus demonstrating that this regulator activates the transcription of all the genes belonging to the pimaricin gene cluster but not its own transcription.

Indexed as

Amino Acid SequenceCloning, MolecularMolecular Sequence DataMultigene FamilyNatamycinStreptomycesTrans-ActivatorsTranscription, GeneticNatamycinTrans-Activators

Identifiers

PMID15090496
PMCPMC387814
OpenAlexW2018847934

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.