Evidence map›Paper›PMID 26832446›Full record

ArticleNature communications2016

Using synthetic bacterial enhancers to reveal a looping-based mechanism for quenching-like repression.

Michal Brunwasser-Meirom, Yaroslav Pollak, Sarah Goldberg, Lior Levy, Orna Atar, Roee Amit

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.2field-weighted citation impact, top 17% 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

5 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. A Looping-Based Model for Quenching Repression.PLoS computational biology · 2017
    Article
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

6 authors at 1 institution in 1 country.

Michal Brunwasser-MeiromDepartment of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel.
Yaroslav PollakRussell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa 32000, Israel.
Sarah GoldbergDepartment of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel.
Lior LevyDepartment of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel.
Orna AtarDepartment of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel.
Roee AmitDepartment of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel.
Technion – Israel Institute of Technology · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We explore a model for 'quenching-like' repression by studying synthetic bacterial enhancers, each characterized by a different binding site architecture. To do so, we take a three-pronged approach: first, we compute the probability that a protein-bound dsDNA molecule will loop. Second, we use hundreds of synthetic enhancers to test the model's predictions in bacteria. Finally, we verify the mechanism bioinformatically in native genomes. Here we show that excluded volume effects generated by DNA-bound proteins can generate substantial quenching. Moreover, the type and extent of the regulatory effect depend strongly on the relative arrangement of the binding sites. The implications of these results are that enhancers should be insensitive to 10-11 bp insertions or deletions (INDELs) and sensitive to 5-6 bp INDELs. We test this prediction on 61 σ(54)-regulated qrr genes from the Vibrio genus and confirm the tolerance of these enhancers' sequences to the DNA's helical repeat.

Indexed as

Enhancer Elements, GeneticBacteriaDNA, BacterialGene Expression Regulation, BacterialModels, BiologicalPromoter Regions, GeneticQuorum SensingSynthetic BiologyDNA, Bacterial

Identifiers

PMID26832446
PMCPMC4740811
OpenAlexW2409451215

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.