Evidence map›Paper›PMID 26878689›Full record

ArticleFEBS letters2016

Direct observation of a 91 bp LacI-mediated, negatively supercoiled DNA loop by atomic force microscope.

Geraldine Fulcrand, Prem Chapagain, David Dunlap, Fenfei Leng

Open access · greenAbstract read
In one paragraph

Article in FEBS letters, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.5field-weighted citation impact, top 29% 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

6 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
  2. Biophysical reviews · 2023
    Review
  3. Article
  4. Article
  5. Review
  6. 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 1 country.

Geraldine FulcrandBiomolecular Sciences Institute, Florida International University, Miami, FL, USA.
Prem ChapagainBiomolecular Sciences Institute, Florida International University, Miami, FL, USA.
David DunlapDepartment of Physics, Emory University, Atlanta, GA, USA.
Fenfei LengBiomolecular Sciences Institute, Florida International University, Miami, FL, USA.
Florida International University · USEmory University · US

Funding

The lambda bacteriophage regulatory loopR01GM084070 · NIGMS · EMORY UNIVERSITY · PI FINZI, LAURA · 2009 to 2021
$4.1M
Mechanisms of Transcription-Coupled DNA SupercoilingSC1HD063059 · NICHD · FLORIDA INTERNATIONAL UNIVERSITY · PI LENG, FENFEI · 2009 to 2012
$972k
Transcription-Coupled DNA SupercoilingR15GM109254 · NIGMS · FLORIDA INTERNATIONAL UNIVERSITY · PI LENG, FENFEI · 2014 to 2014
$317k
NICHD NIH HHS 1SC1HD063059-04NICHD NIH HHS SC1 HD063059NIGMS NIH HHS 1R15GM109254-01A1NIGMS NIH HHS R01 GM084070NIGMS NIH HHS R15 GM109254
6 · The paper itself

Abstract

Escherichia coli lactose repressor (LacI), a tetrameric protein, is a paradigmatic transcriptional factor that controls the expression of lacZYA in the lac operon. It specifically binds to the O1, O2, and O3 operators of the lac promoter, forms DNA loops, and regulates transcription of the lac operon. In this article, utilizing combined techniques of DNA-nicking assay and AFM imaging, we directly observed a 91 bp LacI-mediated, negatively supercoiled DNA loop mimicking the DNA loop between the O1 and O3 operators in the lac promoter.

Indexed as

Microscopy, Atomic ForceDNA, SuperhelicalEscherichia coli ProteinsLac RepressorsModels, MolecularNucleic Acid ConformationProtein ConformationDNA, SuperhelicalEscherichia coli ProteinsLacI protein, E coliLac Repressorsatomic force microscopeDNA loopthe lac operonthe lac promoterthe lac repressor

Identifiers

PMID26878689
PMCPMC4783203
OpenAlexW2335653327

What OpenQuestion holds

Textmetadata
LicenceTDM
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.