Evidence map›Paper›PMID 31665506›Full record

ArticleNucleic acids research2019

Ring-shaped replicative helicase encircles double-stranded DNA during unwinding.

Sihwa Joo, Bong H Chung, Mina Lee, Tai H Ha

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2019. 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
0.4field-weighted citation impact, top 37% 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, 10 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. DNA replication machinery: Insights fromComputational and structural biotechnology journal · 2021
    Review
  5. DNA replication:Computational and structural biotechnology journal · 2021
    Review
  6. Inhibitory Effects of β-Caryophyllene onInternational journal of molecular sciences · 2020
    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

4 authors at 2 institutions in 1 country.

Sihwa JooBioNanoTechnology Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea.
Bong H ChungBioNanoTechnology Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea.
Mina LeeCenter for Nano-Bio Measurement, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea.
Tai H HaBioNanoTechnology Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea.
Korea Research Institute of Bioscience and Biotechnology · KRKorea Research Institute of Standards and Science · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ring-shaped replicative helicases are hexameric and play a key role in cellular DNA replication. Despite their importance, our understanding of the unwinding mechanism of replicative helicases is far from perfect. Bovine papillomavirus E1 is one of the best-known model systems for replicative helicases. E1 is a multifunctional initiator that senses and melts the viral origin and unwinds DNA. Here, we study the unwinding mechanism of E1 at the single-molecule level using magnetic tweezers. The result reveals that E1 as a single hexamer is a poorly processive helicase with a low unwinding rate. Tension on the DNA strands impedes unwinding, indicating that the helicase interacts strongly with both DNA strands at the junction. While investigating the interaction at a high force (26-30 pN), we discovered that E1 encircles dsDNA. By comparing with the E1 construct without a DNA binding domain, we propose two possible encircling modes of E1 during active unwinding.

Indexed as

DNADNA-Binding ProteinsDNA HelicasesDNA ReplicationDNA, Single-StrandedEscherichia coliModels, MolecularNucleic Acid ConformationProtein ConformationProtein Interaction Domains and MotifsProtein MultimerizationViral ProteinsDNADNA-Binding ProteinsDNA HelicasesDNA, Single-StrandedE1 protein, Bovine papillomavirusViral Proteins

Identifiers

PMID31665506
PMCPMC6868380
OpenAlexW2982312414

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.