Evidence map›Paper›PMID 26244743›Full record

ArticleBiophysical journal2015

Interplay of Protein Binding Interactions, DNA Mechanics, and Entropy in DNA Looping Kinetics.

Peter J Mulligan, Yi-Ju Chen, Rob Phillips, Andrew J Spakowitz

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.7field-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

15 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
  2. Idea engines: Unifying innovation & obsolescence from markets & genetic evolution to science.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  3. Robustness of DNA looping across multiple cell divisions in individual bacteria.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Single-molecule fluorescence studies on DNA looping.Methods (San Diego, Calif.) · 2016
    Article
  15. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Peter J MulliganDepartment of Chemical Engineering, Stanford University, Stanford, California.
Yi-Ju ChenDepartment of Physics, California Institute of Technology, Pasadena, California.
Rob PhillipsDepartment of Applied Physics and Department of Biology, California Institute of Technology, Pasadena, California.
Andrew J SpakowitzDepartment of Chemical Engineering, Stanford University, Stanford, California; Biophysics Program, Stanford University, Stanford, California; Department of Materials Science and Engineering, Stanford University, Stanford, California; Department of Applied Physics, Stanford University, Stanford, California. Electronic address: ajspakow@stanford.edu.
California Institute of Technology · USStanford University · US

Funding

TRANS-NETWORK PROJECTSU54CA143869 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI WIDOM, JONATHAN · 2009 to 2013
$12.8M
NIH Director's Pioneer Award (RMI)DP1OD000217 · OD · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI PHILLIPS, ROB · 2004 to 2008
$4.0M
Single-Molecule and Single-Cell Analysis of Transcription Factor-DNA ComplexesR01GM085286 · NIGMS · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI PHILLIPS, ROB · 2009 to 2015
$2.8M
NCI NIH HHS 1-U54-CA143869NCI NIH HHS U54 CA143869NIGMS NIH HHS R01 GM085286NIGMS NIH HHS R01-GM085286NIGMS NIH HHS R01-GM085286-01S1NIH HHS DP1 OD000217NIH HHS DP1-OD000217A
6 · The paper itself

Abstract

DNA looping plays a key role in many fundamental biological processes, including gene regulation, recombination, and chromosomal organization. The looping of DNA is often mediated by proteins whose structural features and physical interactions can alter the length scale at which the looping occurs. Looping and unlooping processes are controlled by thermodynamic contributions associated with mechanical deformation of the DNA strand and entropy arising from thermal fluctuations of the conformation. To determine how these confounding effects influence DNA looping and unlooping kinetics, we present a theoretical model that incorporates the role of the protein interactions, DNA mechanics, and conformational entropy. We show that for shorter DNA strands the interaction distance affects the transition state, resulting in a complex relationship between the looped and unlooped state lifetimes and the physical properties of the looped DNA. We explore the range of behaviors that arise with varying interaction distance and DNA length. These results demonstrate how DNA deformation and entropy dictate the scaling of the looping and unlooping kinetics versus the J-factor, establishing the connection between kinetic and equilibrium behaviors. Our results show how the twist-and-bend elasticity of the DNA chain modulates the kinetics and how the influence of the interaction distance fades away at intermediate to longer chain lengths, in agreement with previous scaling predictions.

Indexed as

Molecular Dynamics SimulationNucleic Acid ConformationBase SequenceDNADNA-Binding ProteinsElasticityEntropyMolecular Sequence DataProtein BindingStress, MechanicalDNADNA-Binding Proteins

Identifiers

PMID26244743
PMCPMC4572505
OpenAlexW1807966992

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.