Evidence map›Paper›PMID 23776535›Full record

ArticlePloS one2013

Transcription factors in Escherichia coli prefer the holo conformation.

Yalbi Itzel Balderas-Martínez, Michael Savageau, Heladia Salgado, Ernesto Pérez-Rueda, Enrique Morett, Julio Collado-Vides

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

15 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Sensory Systems and Transcriptional Regulation inFrontiers in bioengineering and biotechnology · 2022
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Functional Prediction of Hypothetical Transcription Factors ofComputational and structural biotechnology journal · 2018
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Yalbi Itzel Balderas-MartínezPrograma de Genómica Computacional, Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México. balderas@ccg.unam.mx
Michael Savageau
Heladia Salgado
Ernesto Pérez-Rueda
Enrique Morett
Julio Collado-Vides
Universidad Nacional Autónoma de México · MXUniversity of California, Davis · US

Funding

GENE CIRCUITS AND BIOCHEMICAL NETWORKSR01GM030054 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI SAVAGEAU, MICHAEL A · 1985 to 2015
$3.2M
Gene Regulation: E.coli Database Integrated ModelingR01GM071962 · NIGMS · CENTER FOR GENOMIC SCIENCES · PI COLLADO-VIDES, JULIO · 2004 to 2011
$2.4M
NIGMS NIH HHS 5R01GM071962-08NIGMS NIH HHS R01 GM030054NIGMS NIH HHS R01GM030054-23NIGMS NIH HHS R01 GM071962
6 · The paper itself

Abstract

The transcriptional regulatory network of Escherichia coli K-12 is among the best studied gene networks of any living cell. Transcription factors bind to DNA either with their effector bound (holo conformation), or as a free protein (apo conformation) regulating transcription initiation. By using RegulonDB, the functional conformations (holo or apo) of transcription factors, and their mode of regulation (activator, repressor, or dual) were exhaustively analyzed. We report a striking discovery in the architecture of the regulatory network, finding a strong under-representation of the apo conformation (without allosteric metabolite) of transcription factors when binding to their DNA sites to activate transcription. This observation is supported at the level of individual regulatory interactions on promoters, even if we exclude the promoters regulated by global transcription factors, where three-quarters of the known promoters are regulated by a transcription factor in holo conformation. This genome-scale analysis enables us to ask what are the implications of these observations for the physiology and for our understanding of the ecology of E. coli. We discuss these ideas within the framework of the demand theory of gene regulation.

Indexed as

Protein ConformationDatabases, GeneticEscherichia coli K12Gene Regulatory NetworksRegulonTranscription FactorsTranscription Factors

Identifiers

PMID23776535
PMCPMC3680503
OpenAlexW2049310591

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.