Evidence map›Paper›PMID 22974237›Full record

ArticleAnalytical chemistry2012

Influenza virus-membrane fusion triggered by proton uncaging for single particle studies of fusion kinetics.

Deirdre A Costello, Donald W Lee, Jennifer Drewes, Kevin A Vasquez, Kassandra Kisler, Ulrich Wiesner, Lois Pollack, Gary R Whittaker, Susan Daniel

Abstract read
In one paragraph

Article in Analytical chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing 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

28 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Recent Developments in Single-Virus Fusion Assay.The Journal of membrane biology · 2022
    Review
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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

9 authors.

Deirdre A CostelloSchool of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York, United States.
Donald W Lee
Jennifer Drewes
Kevin A Vasquez
Kassandra Kisler
Ulrich Wiesner
Lois Pollack
Gary R Whittaker
Susan Daniel

Funding

Endocytosis of Influenza VirusesR01AI048678 · NIAID · CORNELL UNIVERSITY ITHACA · PI WHITTAKER, GARY R · 2001 to 2011
$3.4M
NIAID NIH HHS R01 AI048678NIAID NIH HHS R01 AI48678
6 · The paper itself

Abstract

We report a method for studying membrane fusion, focusing on influenza virus fusion to lipid bilayers, which provides high temporal resolution through the rapid and coordinated initiation of individual virus fusion events. Each fusion event proceeds through a series of steps, much like multistep chemical reaction. Fusion is initiated by a rapid decrease in pH that accompanies the "uncaging" of an effector molecule from o-nitrobenzaldehyde, a photoisomerizable compound that releases a proton to the surrounding solution within microseconds of long-wave ultraviolet irradiation. In order to quantify pH values upon UV irradiation and uncaging, we introduce a simple silica nanoparticle pH sensor, useful for reporting the pH in homogeneous nanoliter volumes under conditions where traditional organic dye-type pH probes fail. Subsequent single-virion fusion events are monitored using total internal reflection fluorescence microscopy. Statistical analysis of these stochastic events uncovers kinetic information about the fusion reaction. This approach reveals that the kinetic parameters obtained from the data are sensitive to the rate at which protons are delivered to the bound viruses. Higher resolution measurements can enhance fundamental fusion studies and aid antiviral antifusogenic drug development.

Indexed as

Host-Pathogen InteractionsVirus InternalizationCell MembraneHumansHydrogen-Ion ConcentrationInfluenza A Virus, H3N2 SubtypeInfluenza, HumanKineticsLipid BilayersMicroscopy, FluorescenceNanoparticlesProtonsSilicon DioxideLipid BilayersProtonsSilicon Dioxide

Identifiers

PMID22974237
PMCPMC3489278

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.