Evidence map›Paper›PMID 31180319›Full record

ArticleeLife2019

Molecular organization and dynamics of the fusion protein Gc at the hantavirus surface.

Eduardo A Bignon, Amelina Albornoz, Pablo Guardado-Calvo, Félix A Rey, Nicole D Tischler

Abstract read
In one paragraph

Article in eLife, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing 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

26 citing papers in PubMed.

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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

5 authors.

Eduardo A BignonLaboratorio de Virología Molecular, Fundación Ciencia & Vida, Santiago, Chile.ORCID 0000-0002-9116-3352
Amelina AlbornozLaboratorio de Virología Molecular, Fundación Ciencia & Vida, Santiago, Chile.ORCID 0000-0003-1030-8650
Pablo Guardado-CalvoStructural Virology Unit, Virology Department, Institut Pasteur, CNRS UMR 3569, Paris, France.ORCID 0000-0001-7292-5270
Félix A ReyStructural Virology Unit, Virology Department, Institut Pasteur, CNRS UMR 3569, Paris, France.ORCID 0000-0002-9953-7988
Nicole D TischlerLaboratorio de Virología Molecular, Fundación Ciencia & Vida, Santiago, Chile.ORCID 0000-0002-4578-4780

Funding

Comisión Nacional de Investigación Científica y Tecnológica FONDEQUIP EQM130092 for the improvement of BSL3 of Pontificia Universidad Católica de ChileComisión Nacional de Investigación Científica y Tecnológica Fondo Nacional de Desarrollo Científico y Tecnológico FONDECYT 1181799Comisión Nacional de Investigación Científica y Tecnológica Fondo Nacional de Desarrollo Científico y Tecnológico FONDECYT 3150695Comisión Nacional de Investigación Científica y Tecnológica Programa de Apoyo a Centros con Financiamiento Basal 170004 to Fundación Ciencia and VidaInfect-ERA IMI European network ProgramIntegrative Biology of Emerging Infectious Diseases Labex (French government´s grant ANR-10-LABX-62-IBEIDLabex IBEID ANR-10-LABX-62-IBEIDLabex IBEID ANR-10-LABX-62-IBEID 4E AAPLabex IBEID grant ANR-10-LABX-62-IBEID 4E AAPSeventh Framework Programme Infect-ERA IMI European network HantaHunt Program
6 · The paper itself

Abstract

The hantavirus envelope glycoproteins Gn and Gc mediate virion assembly and cell entry, with Gc driving fusion of viral and endosomal membranes. Although the X-ray structures and overall arrangement of Gn and Gc on the hantavirus spikes are known, their detailed interactions are not. Here we show that the lateral contacts between spikes are mediated by the same 2-fold contacts observed in Gc crystals at neutral pH, allowing the engineering of disulfide bonds to cross-link spikes. Disrupting the observed dimer interface affects particle assembly and overall spike stability. We further show that the spikes display a temperature-dependent dynamic behavior at neutral pH, alternating between 'open' and 'closed' forms. We show that the open form exposes the Gc fusion loops but is off-pathway for productive Gc-induced membrane fusion and cell entry. These data also provide crucial new insights for the design of optimized Gn/Gc immunogens to elicit protective immune responses.

Indexed as

Virus AssemblyVirus InternalizationAmino Acid SequenceCrystallography, X-RayGlycoproteinsHydrogen-Ion ConcentrationMembrane FusionModels, MolecularOrthohantavirusProtein ConformationProtein MultimerizationProtein StabilitySequence Homology, Amino AcidTemperatureViral Envelope ProteinsGlycoproteinsViral Envelope ProteinsbiochemistryBunyavirales orderchemical biologyenvelope proteinsinfectious diseaseinter-spike interfacemembrane fusionmicrobiologyviral breathingvirus

Identifiers

PMID31180319
PMCPMC6609335

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.