Evidence map›Paper›PMID 19036813›Full record

ArticleJournal of virology2009

The human immunodeficiency virus type 1 envelope spike of primary viruses can suppress antibody access to variable regions.

Ralph Pantophlet, Meng Wang, Rowena O Aguilar-Sino, Dennis R Burton

Abstract read
In one paragraph

Article in Journal of virology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

18 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Review
  6. New prospects for a preventive HIV-1 vaccine.Journal of virus eradication · 2015
    Article
  7. Article
  8. Review
  9. A Blueprint for HIV Vaccine Discovery.Cell host & microbe · 2012
    Review
  10. Review
  11. Phages and HIV-1: from display to interplay.International journal of molecular sciences · 2012
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
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

4 authors.

Ralph PantophletDepartment of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, California 92037, USA. rpantophlet@sfu.ca
Meng Wang
Rowena O Aguilar-Sino
Dennis R Burton

Funding

XRAY CRYSTALLOGRAPHIC STRUCTURE ANALYSIS: PROTEIN SORTINGP41RR001081 · NCRR · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI FERRIN, THOMAS E · 1985 to 2011
$17.6M
HUMAN ANTIBODIES TO HIV-1 BY REPERTOIRE CLONINGR01AI033292 · NIAID · SCRIPPS RESEARCH INSTITUTE, THE · PI BURTON, DENNIS R. · 1992 to 2013
$5.9M
HUMAN ANTIBODIES TO HIV-1 BY REPERTOIRE CLONINGR37AI033292 · NIAID · SCRIPPS RESEARCH INSTITUTE · PI BURTON, DENNIS R. · 1995 to 2004
$2.4M
NCRR NIH HHS P41 RR001081NCRR NIH HHS P41 RR-01081NIAID NIH HHS AI33292NIAID NIH HHS R01 AI033292NIAID NIH HHS R37 AI033292
6 · The paper itself

Abstract

The human immunodeficiency virus type 1 (HIV-1) envelope spike is a heavily glycosylated trimeric structure in which protein surfaces conserved between different HIV-1 isolates are particularly well hidden from antibody recognition. However, even variable regions on the spike tend to be less antigenic and immunogenic than one might have anticipated for external structures. Here we show that the envelope spike of primary viruses has an ability to restrict antibody recognition of variable regions. We show that access to an artificial epitope, introduced at multiple positions across the spike, is frequently limited, even though the epitope has been inserted at surface-exposed regions on the spike. Based on the data, we posit that restricted antibody access may be the result, at least in part, of a rigidification of the epitope sequence in the context of the spike and/or a highly effective flexible arrangement of the glycan shield on primary viruses. Evolution of the HIV envelope structure to incorporate extra polypeptide sequences into nominally accessible regions with limited antibody recognition may contribute to reducing the magnitude of antibody responses during infection and allow the virus to replicate unhindered by antibody pressure for longer periods.

Indexed as

Amino Acid Sequenceenv Gene Products, Human Immunodeficiency VirusEpitopesHIV-1HIV AntibodiesHumansModels, MolecularMolecular Sequence DataProtein Structure, Quaternaryenv Gene Products, Human Immunodeficiency VirusEpitopesHIV Antibodies

Identifiers

PMID19036813
PMCPMC2643787

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.