Evidence map›Paper›PMID 22682774›Full record

ArticleVirology

Structure of adeno-associated virus-2 in complex with neutralizing monoclonal antibody A20.

Dustin M McCraw, Jason K O'Donnell, Kenneth A Taylor, Scott M Stagg, Michael S Chapman

Abstract read
In one paragraph

Article in Virology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed
5.0field-weighted citation impact, top 4% 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

71 citing papers in PubMed, 83 citations in OpenAlex.

  1. The amazing AAV capsids: Into the structure-verse.Molecular therapy. Methods & clinical development · 2025
    Review
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  17. Enhanced Transduction of P2X7-Expressing Cells with Recombinant rAAV Vectors.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
  18. Article
  19. Article
  20. Review

11 more citing papers are in PubMed but not listed here.

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 at 2 institutions in 1 country.

Dustin M McCrawDepartment of Biochemistry and Molecular Biology, School of Medicine, Mail code L224, Oregon Health & Science University, 3181 S.W. Sam Jackson Park Road, Portland, OR 97239-3098, USA.
Jason K O'Donnell
Kenneth A Taylor
Scott M Stagg
Michael S Chapman
Florida State University · USOregon Health & Science University · US

Funding

Structure-Function of AAV - a Viral Gene Therapy Vector.R01GM066875 · NIGMS · OREGON HEALTH & SCIENCE UNIVERSITY · PI CHAPMAN, MICHAEL S. · 2003 to 2016
$4.1M
Purchase of a FEI Titan Krios for 3-D EMS10RR025080 · NCRR · FLORIDA STATE UNIVERSITY · PI TAYLOR, KENNETH ALLEN · 2008 to 2008
$2.0M
Refinement of Macromolecular Assembly Structure using Electron MicroscopyR01GM078538 · NIGMS · OREGON HEALTH & SCIENCE UNIVERSITY · PI CHAPMAN, MICHAEL S. · 2007 to 2010
$1.1M
NCRR NIH HHS S10 RR025080NCRR NIH HHS S10-RR025080NIGMS NIH HHS R01 GM066875NIGMS NIH HHS R01 GM078538NIGMS NIH HHS R01GM66875NIGMS NIH HHS R01GM78538
6 · The paper itself

Abstract

The use of adeno-associated virus (AAV) as a gene therapy vector is limited by the host neutralizing immune response. The cryo-electron microscopy (EM) structure at 8.5Å resolution is determined for a complex of AAV-2 with the Fab' fragment of monoclonal antibody (MAb) A20, the most extensively characterized AAV MAb. The binding footprint is determined through fitting the cryo-EM reconstruction with a homology model following sequencing of the variable domain, and provides a structural basis for integrating diverse prior epitope mappings. The footprint extends from the previously implicated plateau to the side of the spike, and into the conserved canyon, covering a larger area than anticipated. Comparison with structures of binding and non-binding serotypes indicates that recognition depends on a combination of subtle serotype-specific features. Separation of the neutralizing epitope from the heparan sulfate cell attachment site encourages attempts to develop immune-resistant vectors that can still bind to target cells.

Indexed as

Amino Acid SequenceAntibodies, MonoclonalAntibodies, ViralCryoelectron MicroscopyDependovirusEpitope MappingHumansImmunoglobulin Fab FragmentsMacromolecular SubstancesMolecular Sequence DataMolecular StructureProtein Structure, QuaternaryAntibodies, MonoclonalAntibodies, ViralImmunoglobulin Fab FragmentsMacromolecular Substances

Identifiers

PMID22682774
PMCPMC3383000
OpenAlexW2054723576

What OpenQuestion holds

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LicenceTDM
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.