Evidence map›Paper›PMID 30269492›Full record

ArticleJournal of the American Chemical Society2018

γ-Hemolysin Nanopore Is Sensitive to Guanine-to-Inosine Substitutions in Double-Stranded DNA at the Single-Molecule Level.

Cherie S Tan, Aaron M Fleming, Hang Ren, Cynthia J Burrows, Henry S White

Abstract read
In one paragraph

Article in Journal of the American Chemical Society, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
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

11 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Real-Time and Label-Free Measurement of Deubiquitinase Activity with a MspA Nanopore.Chembiochem : a European journal of chemical biology · 2021
    Article
  9. Article
  10. Article
  11. 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

5 authors.

Cherie S TanDepartment of Chemistry , University of Utah , 315 South 1400 East , Salt Lake City , Utah 84112-0850 , United States.
Aaron M FlemingDepartment of Chemistry , University of Utah , 315 South 1400 East , Salt Lake City , Utah 84112-0850 , United States.ORCID 0000-0002-2000-0310
Hang RenDepartment of Chemistry , University of Utah , 315 South 1400 East , Salt Lake City , Utah 84112-0850 , United States.ORCID 0000-0002-9480-8881
Cynthia J BurrowsDepartment of Chemistry , University of Utah , 315 South 1400 East , Salt Lake City , Utah 84112-0850 , United States.ORCID 0000-0001-7253-8529
Henry S WhiteDepartment of Chemistry , University of Utah , 315 South 1400 East , Salt Lake City , Utah 84112-0850 , United States.ORCID 0000-0002-5053-0996

Funding

Nanopore Detection of DNA DamageR01GM093099 · NIGMS · UNIVERSITY OF UTAH · PI BURROWS, CYNTHIA J · 2011 to 2021
$3.0M
NIGMS NIH HHS R01 GM093099
6 · The paper itself

Abstract

Biological nanopores provide a unique single-molecule sensing platform to detect target molecules based on their specific electrical signatures. The γ-hemolysin (γ-HL) protein produced by Staphylococcus aureus is able to assemble into an octamer nanopore with a ∼2.3 nm diameter β-barrel. Herein, we demonstrate the first application of γ-HL nanopore for DNA structural analysis. To optimize conditions for ion-channel recording, the properties of the γ-HL pore (e.g., conductance, voltage-dependent gating, and ion-selectivity) were characterized at different pH, temperature, and electrolyte concentrations. The optimal condition for DNA analysis using γ-HL corresponds to 3 M KCl, pH 5, and T = 20 °C. The γ-HL protein nanopore is able to translocate dsDNA at about ∼20 bp/ms, and the unique current-signature of captured dsDNA can directly distinguish guanine-to-inosine substitutions at the single-molecule level with ∼99% accuracy. The slow dsDNA threading and translocation processes indicate this wild-type γ-HL channel has potential to detect other base modifications in dsDNA.

Indexed as

NanoporesDNAGuanineHemolysin ProteinsInosineModels, MolecularNucleic Acid ConformationDNAGuanineHemolysin ProteinsInosine

Identifiers

PMID30269492
PMCPMC6242276

What OpenQuestion holds

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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.