Evidence map›Paper›PMID 26135247›Full record

ArticleJournal of molecular biology2015

Structure of Hepatitis C Virus Envelope Glycoprotein E1 Antigenic Site 314-324 in Complex with Antibody IGH526.

Leopold Kong, Rameshwar U Kadam, Erick Giang, Tinashe B Ruwona, Travis Nieusma, Jeffrey C Culhane, Robyn L Stanfield, Philip E Dawson, Ian A Wilson, Mansun Law

Open access · greenAbstract read
In one paragraph

Article in Journal of molecular biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

44 citing papers in PubMed, 57 citations in OpenAlex.

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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

10 authors at 1 institution in 1 country.

Leopold KongDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
Rameshwar U KadamDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
Erick GiangDepartment of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA 92037, USA.
Tinashe B RuwonaDepartment of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA 92037, USA.
Travis NieusmaDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
Jeffrey C CulhaneDepartment of Chemistry, The Scripps Research Institute, La Jolla, CA 92037, USA; Department of Cell and Molecular Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
Robyn L StanfieldDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
Philip E DawsonDepartment of Chemistry, The Scripps Research Institute, La Jolla, CA 92037, USA; Department of Cell and Molecular Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
Ian A WilsonDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA; The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037, USA. Electronic address: wilson@scripps.edu.
Mansun LawDepartment of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA 92037, USA. Electronic address: mlaw@scripps.edu.
Scripps Research Institute · US

Funding

Structure Determination Core at SSRLU54GM094586 · NIGMS · SCRIPPS RESEARCH INSTITUTE, THE · PI LESLEY, SCOTT ALLAN · 2010 to 2014
$40.1M
Understanding human neutralizing antibodies to hepatitis C virusR01AI079031 · NIAID · SCRIPPS RESEARCH INSTITUTE, THE · PI LAW, MANSUN · 2008 to 2017
$4.6M
Structural Biology of HIV-1 Neutralizing Antibody Targets for Vaccine DesignR01AI084817 · NIAID · SCRIPPS RESEARCH INSTITUTE, THE · PI WILSON, IAN A · 2009 to 2013
$3.2M
Dissecting virus neutralizing determinants to guide HCV vaccine developmentR01AI106005 · NIAID · SCRIPPS RESEARCH INSTITUTE, THE · PI LAW, MANSUN · 2014 to 2017
$1.5M
Dissecting virus neutralizing determinants to guide HCV vaccine developmentR56AI106005 · NIAID · SCRIPPS RESEARCH INSTITUTE, THE · PI LAW, MANSUN · 2013 to 2013
$793k
Structure and dynamics of native HIV-1 envelope trimersR56AI084817 · NIAID · SCRIPPS RESEARCH INSTITUTE, THE · PI WILSON, IAN A · 2015 to 2015
$593k
NIAID NIH HHS AI079031NIAID NIH HHS AI084817NIAID NIH HHS AI106005NIAID NIH HHS R01 AI079031NIAID NIH HHS R01 AI084817NIAID NIH HHS R01 AI106005NIAID NIH HHS R56 AI084817NIAID NIH HHS R56 AI106005NIGMS NIH HHS U54 GM094586
6 · The paper itself

Abstract

Hepatitis C virus (HCV) is a positive-strand RNA virus within the Flaviviridae family. The viral "spike" of HCV is formed by two envelope glycoproteins, E1 and E2, which together mediate viral entry by engaging host receptors and undergoing conformational changes to facilitate membrane fusion. While E2 can be readily produced in the absence of E1, E1 cannot be expressed without E2 and few reagents, including monoclonal antibodies (mAbs), are available for study of this essential HCV glycoprotein. A human mAb to E1, IGH526, was previously reported to cross-neutralize different HCV isolates, and therefore, we sought to further characterize the IGH526 neutralizing epitope to obtain information for vaccine design. We found that mAb IGH526 bound to a discontinuous epitope, but with a major component corresponding to E1 residues 314-324. The crystal structure of IGH526 Fab with this E1 glycopeptide at 1.75Å resolution revealed that the antibody binds to one face of an α-helical peptide. Single mutations on the helix substantially lowered IGH526 binding but did not affect neutralization, indicating either that multiple mutations are required or that additional regions are recognized by the antibody in the context of the membrane-associated envelope oligomer. Molecular dynamics simulations indicate that the free peptide is flexible in solution, suggesting that it requires stabilization for use as a candidate vaccine immunogen.

Indexed as

Antibodies, MonoclonalAntibodies, NeutralizingBinding Sites, AntibodyCell LineCrystallography, X-RayEpitope MappingEpitopesHEK293 CellsHepacivirusHepatitis C AntibodiesHumansImmunoglobulin Fab FragmentsMolecular Dynamics SimulationViral Envelope ProteinsAntibodies, MonoclonalAntibodies, NeutralizingE1 protein, Hepatitis C virusEpitopesHepatitis C AntibodiesImmunoglobulin Fab FragmentsViral Envelope ProteinsE1 envelope glycoproteinHCVIGH526vaccine design

Identifiers

PMID26135247
PMCPMC4523428
OpenAlexW832466652

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.