Evidence map›Paper›PMID 23077316›Full record

ArticleJournal of virology2013

Mechanism for active membrane fusion triggering by morbillivirus attachment protein.

Nadine Ader, Melinda Brindley, Mislay Avila, Claes Örvell, Branka Horvat, Georg Hiltensperger, Jürgen Schneider-Schaulies, Marc Vandevelde, Andreas Zurbriggen, Richard K Plemper and 1 more

Abstract read
In one paragraph

Article in Journal of virology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing 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

48 citing papers in PubMed.

  1. Article
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  11. Measles Resurgence and Drug Development.Current opinion in virology · 2020
    Review
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  13. Article
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  15. 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

11 authors.

Nadine AderDivision of Experimental Clinical Research, Neurovirology Unit, DCR-VPH, University of Bern, Bern, Switzerland.
Melinda Brindley
Mislay Avila
Claes Örvell
Branka Horvat
Georg Hiltensperger
Jürgen Schneider-Schaulies
Marc Vandevelde
Andreas Zurbriggen
Richard K Plemper
Philippe Plattet

Funding

Cryo-Electron and Biochemical Anaysis of Native Paramyxovirus Fusion ComplexesR01AI083402 · NIAID · GEORGIA STATE UNIVERSITY · PI PLEMPER, RICHARD K. · 2011 to 2015
$1.7M
Cryo-Electron and Biochemical Analysis of Native Paramyxovirus Fusion ComplexesR56AI083402 · NIAID · EMORY UNIVERSITY · PI PLEMPER, RICHARD K. · 2010 to 2010
$380k
NIAID NIH HHS AI083402NIAID NIH HHS R01 AI083402NIAID NIH HHS R56 AI083402
6 · The paper itself

Abstract

The paramyxovirus entry machinery consists of two glycoproteins that tightly cooperate to achieve membrane fusion for cell entry: the tetrameric attachment protein (HN, H, or G, depending on the paramyxovirus genus) and the trimeric fusion protein (F). Here, we explore whether receptor-induced conformational changes within morbillivirus H proteins promote membrane fusion by a mechanism requiring the active destabilization of prefusion F or by the dissociation of prefusion F from intracellularly preformed glycoprotein complexes. To properly probe F conformations, we identified anti-F monoclonal antibodies (MAbs) that recognize conformation-dependent epitopes. Through heat treatment as a surrogate for H-mediated F triggering, we demonstrate with these MAbs that the morbillivirus F trimer contains a sufficiently high inherent activation energy barrier to maintain the metastable prefusion state even in the absence of H. This notion was further validated by exploring the conformational states of destabilized F mutants and stabilized soluble F variants combined with the use of a membrane fusion inhibitor (3g). Taken together, our findings reveal that the morbillivirus H protein must lower the activation energy barrier of metastable prefusion F for fusion triggering.

Indexed as

Virus InternalizationAnimalsAntibodies, MonoclonalAntibodies, ViralCell LineEpitopesHemagglutinins, ViralHumansMorbillivirusProtein BindingProtein ConformationViral Fusion ProteinsAntibodies, MonoclonalAntibodies, ViralEpitopesHemagglutinins, ViralH protein, Dolphin morbillivirusViral Fusion Proteins

Identifiers

PMID23077316
PMCPMC3536382

What OpenQuestion holds

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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.