Evidence map›Paper›PMID 29603305›Full record

ReviewBioEssays : news and reviews in molecular, cellular and developmental biology2018

How Does a Helicase Unwind DNA? Insights from RecBCD Helicase.

Timothy M Lohman, Nicole T Fazio

Open access · greenAbstract readReview
In one paragraph

Review in BioEssays : news and reviews in molecular, cellular and developmental biology, 2018. 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
1.1field-weighted citation impact, top 23% 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, 28 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. "Helicase" Activity promoted through dynamic interactions between a ssDNA translocase and a diffusing SSB protein.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. 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

2 authors at 1 institution in 1 country.

Timothy M LohmanDepartment of Biochemistry and Molecular Biophysics, Washington University in St. Louis, School of Medicine, St. Louis, MO, 63110, USA.
Nicole T FazioDepartment of Biochemistry and Molecular Biophysics, Washington University in St. Louis, School of Medicine, St. Louis, MO, 63110, USA.
Washington University in St. Louis · US

Funding

HELICASE-CATALYZED DNA UNWINDINGR01GM045948 · NIGMS · WASHINGTON UNIVERSITY · PI LOHMAN, TIMOTHY M · 1991 to 2020
$9.2M
NIGMS NIH HHS R01 GM045948
6 · The paper itself

Abstract

DNA helicases are a class of molecular motors that catalyze processive unwinding of double stranded DNA. In spite of much study, we know relatively little about the mechanisms by which these enzymes carry out the function for which they are named. Most current views are based on inferences from crystal structures. A prominent view is that the canonical ATPase motor exerts a force on the ssDNA resulting in "pulling" the duplex across a "pin" or "wedge" in the enzyme leading to a mechanical separation of the two DNA strands. In such models, DNA base pair separation is tightly coupled to ssDNA translocation of the motors. However, recent studies of the Escherichia coli RecBCD helicase suggest an alternative model in which DNA base pair melting and ssDNA translocation occur separately. In this view, the enzyme-DNA binding free energy is used to melt multiple DNA base pairs in an ATP-independent manner, followed by ATP-dependent translocation of the canonical motors along the newly formed ssDNA tracks. Repetition of these two steps results in processive DNA unwinding. We summarize recent evidence suggesting this mechanism for RecBCD helicase action.

Indexed as

Adenosine TriphosphatasesBase PairingDNADNA HelicasesEscherichia coliEscherichia coli ProteinsTranslocation, GeneticAdenosine TriphosphatasesDNADNA HelicasesEscherichia coli ProteinsallosteryDNA helicasekineticsmechanismmotor proteinnucleasetranslocase

Identifiers

PMID29603305
PMCPMC6154392
OpenAlexW2794557301

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.