Evidence map›Paper›PMID 24316082›Full record

ArticleCell reports2013

Structural basis for enhanced HIV-1 neutralization by a dimeric immunoglobulin G form of the glycan-recognizing antibody 2G12.

Yunji Wu, Anthony P West, Helen J Kim, Matthew E Thornton, Andrew B Ward, Pamela J Bjorkman

Open access · goldAbstract read
In one paragraph

Article in Cell reports, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.1field-weighted citation impact, top 25% 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

25 citing papers in PubMed, 45 citations in OpenAlex.

  1. Review
  2. Article
  3. Science advances · 2025
    Article
  4. Article
  5. Article
  6. Review
  7. Joined at the hip: The role of light chain complementarity determining region 2 in antibody self-association.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  8. Antibody homotypic interactions are encoded by germline light chain complementarity determining region 2.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  9. Antibody interfaces revealed through structural mining.Computational and structural biotechnology journal · 2022
    Article
  10. Review
  11. Article
  12. Review
  13. Antibodies for Human Immunodeficiency Virus-1 Cure Strategies.The Journal of infectious diseases · 2021
    Review
  14. Glycans in Virus-Host Interactions: A Structural Perspective.Frontiers in molecular biosciences · 2021
    Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. Review
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

6 authors at 3 institutions in 1 country.

Yunji WuDivision of Biology and Biological Engineering 114-96, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA.
Anthony P WestDivision of Biology and Biological Engineering 114-96, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA.
Helen J KimDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
Matthew E ThorntonDivision of Biology and Biological Engineering 114-96, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA.
Andrew B WardDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
Pamela J BjorkmanDivision of Biology and Biological Engineering 114-96, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA; Howard Hughes Medical Institute, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA. Electronic address: bjorkman@caltech.edu.
California Institute of Technology · USScripps Research Institute · USHoward Hughes Medical Institute · US

Funding

Analysis of the Neonatal Fc Receptor/IgG InteractionR37AI041239 · NIAID · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI BJORKMAN, PAMELA J · 2004 to 2013
$3.7M
Thwarting HIV evasion of antibody avidity with novel antibody architecturesDP1DA035082 · NIDA · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI BJORKMAN, PAMELA J · 2012 to 2014
$2.5M
Howard Hughes Medical InstituteNIAID NIH HHS 2 R37AI041239-06A1NIAID NIH HHS R37 AI041239NIDA NIH HHS DP1 DA035082
6 · The paper itself

Abstract

The human immunoglobulin G (IgG) 2G12 recognizes high-mannose carbohydrates on the HIV type 1 (HIV-1) envelope glycoprotein gp120. Its two antigen-binding fragments (Fabs) are intramolecularly domain exchanged, resulting in a rigid (Fab)2 unit including a third antigen-binding interface not found in antibodies with flexible Fab arms. We determined crystal structures of dimeric 2G12 IgG created by intermolecular domain exchange, which exhibits increased breadth and >50-fold increased neutralization potency compared with monomeric 2G12. The four Fab and two fragment crystalline (Fc) regions of dimeric 2G12 were localized at low resolution in two independent structures, revealing IgG dimers with two (Fab)2 arms analogous to the Fabs of conventional monomeric IgGs. Structures revealed three conformationally distinct dimers, demonstrating flexibility of the (Fab)2-Fc connections that was confirmed by electron microscopy, small-angle X-ray scattering, and binding studies. We conclude that intermolecular domain exchange, flexibility, and bivalent binding to allow avidity effects are responsible for the increased potency and breadth of dimeric 2G12.

Indexed as

Amino Acid SequenceAntibodies, MonoclonalAntibodies, NeutralizingBroadly Neutralizing AntibodiesHEK293 CellsHIV AntibodiesHumansImmunoglobulin Fab FragmentsImmunoglobulin GMolecular Sequence Data2G12 monoclonal antibodyAntibodies, MonoclonalAntibodies, NeutralizingBroadly Neutralizing AntibodiesHIV AntibodiesImmunoglobulin Fab FragmentsImmunoglobulin G

Identifiers

PMID24316082
PMCPMC3919625
OpenAlexW2038883675

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.