Evidence map›Paper›PMID 17189297›Full record

ArticleNucleic acids research2007

Anatomy of Escherichia coli sigma70 promoters.

Ryan K Shultzaberger, Zehua Chen, Karen A Lewis, Thomas D Schneider

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 139 papers.

0numbers the graph read from it
0cells of the map it votes in
139citing papers in PubMed
7.4field-weighted citation impact, top 2% 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

139 citing papers in PubMed, 206 citations in OpenAlex.

  1. Article
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  4. Journal of bacteriology · 2026
    Review
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  15. Identification of novel broad host-range promoter sequences functional in diverse Pseudomonadota by a promoter-trap approach.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2024
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

79 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

4 authors at 2 institutions in 1 country.

Ryan K ShultzabergerCenter for Cancer Research Nanobiology Program, National Cancer Institute at Frederick, PO Box B, Building 469, Room 144, Frederick, MD 21702-1201, USA.
Zehua Chen
Karen A Lewis
Thomas D Schneider
Frederick National Laboratory for Cancer Research · USCenter for Cancer Research · US

Funding

MOLECULAR INFORMATION THEORYZ01BC008396 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI SCHNEIDER, THOMAS W · 1996 to 2008
$1.0M
Molecular Information TheoryZIABC008396 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI SCHNEIDER, THOMAS · 2009 to 2010
$906k
Intramural NIH HHS
6 · The paper itself

Abstract

Information theory was used to build a promoter model that accounts for the -10, the -35 and the uncertainty of the gap between them on a common scale. Helical face assignment indicated that base -7, rather than -11, of the -10 may be flipping to initiate transcription. We found that the sequence conservation of sigma70 binding sites is 6.5 +/- 0.1 bits. Some promoters lack a -35 region, but have a 6.7 +/- 0.2 bit extended -10, almost the same information as the bipartite promoter. These results and similarities between the contacts in the extended -10 binding and the -35 suggest that the flexible bipartite sigma factor evolved from a simpler polymerase. Binding predicted by the bipartite model is enriched around 35 bases upstream of the translational start. This distance is the smallest 5' mRNA leader necessary for ribosome binding, suggesting that selective pressure minimizes transcript length. The promoter model was combined with models of the transcription factors Fur and Lrp to locate new promoters, to quantify promoter strengths, and to predict activation and repression. Finally, the DNA-bending proteins Fis, H-NS and IHF frequently have sites within one DNA persistence length from the -35, so bending allows distal activators to reach the polymerase.

Indexed as

Models, GeneticPromoter Regions, GeneticAlgorithmsBase SequenceBinding SitesConserved SequenceDNA-Binding ProteinsDNA-Directed RNA PolymerasesEscherichia coliEscherichia coli ProteinsGene Expression Regulation, BacterialInformation TheoryRibosomesSigma FactorTranscription FactorsTranscription, GeneticDNA-Binding ProteinsDNA-Directed RNA PolymerasesEscherichia coli ProteinsRNA polymerase sigma 70Sigma FactorTranscription Factors

Identifiers

PMID17189297
PMCPMC1807945
OpenAlexW2054735322

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.