Evidence map›Paper›PMID 35677643›Full record

ArticleiScience2022

Structural dynamics reveal isolate-specific differences at neutralization epitopes on HIV Env.

Edgar A Hodge, Gajendra S Naika, Sally M Kephart, Adam Nguyen, Richard Zhu, Mark A Benhaim, Wenjin Guo, John P Moore, Shiu-Lok Hu, Rogier W Sanders and 1 more

Open access · goldAbstract read
In one paragraph

Article in iScience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.7field-weighted citation impact, top 13% 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

15 citing papers in PubMed, 25 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

11 authors at 2 institutions in 2 countries.

Edgar A HodgeDepartment of Medicinal Chemistry, University of Washington, Seattle, WA 98195, USA.
Gajendra S NaikaDepartment of Medicinal Chemistry, University of Washington, Seattle, WA 98195, USA.
Sally M KephartDepartment of Medicinal Chemistry, University of Washington, Seattle, WA 98195, USA.
Adam NguyenDepartment of Medicinal Chemistry, University of Washington, Seattle, WA 98195, USA.
Richard ZhuDepartment of Medicinal Chemistry, University of Washington, Seattle, WA 98195, USA.
Mark A BenhaimDepartment of Medicinal Chemistry, University of Washington, Seattle, WA 98195, USA.
Wenjin GuoDepartment of Pharmaceutics, University of Washington, Seattle, WA 98195, USA.
John P MooreDivision of Microbiology and Immunology, Weill Medical College of Cornell University, New York, NY 10021, USA.
Shiu-Lok HuDepartment of Pharmaceutics, University of Washington, Seattle, WA 98195, USA.
Rogier W SandersDivision of Microbiology and Immunology, Weill Medical College of Cornell University, New York, NY 10021, USA.
Kelly K LeeDepartment of Medicinal Chemistry, University of Washington, Seattle, WA 98195, USA.
University of Washington · USCornell University · US

Funding

Structural studies of native-like SOSIP trimersP01AI110657 · NIAID · WEILL MEDICAL COLL OF CORNELL UNIV · PI MOORE, JOHN P · 2015 to 2024
$35.4M
Pharmacological Sciences SupplementT32GM007750 · NIGMS · UNIVERSITY OF WASHINGTON · PI ATKINS, WILLIAM M · 1985 to 2023
$12.6M
Structural and dynamic traits underlying phenotypic variation in HIV-1 EnvR01AI140868 · NIAID · UNIVERSITY OF WASHINGTON · PI Kelly Keisen Lee · 2019 to 2026
$5.3M
Approaches to Improve the Efficacy of Prime-boost Immunization against HIV/AIDSR01AI129673 · NIAID · UNIVERSITY OF WASHINGTON · PI HU, SHIU-LOK · 2017 to 2021
$4.4M
Neutralization of Primate Immunodeficiency VirusesR01AI036082 · NIAID · WEILL MEDICAL COLL OF CORNELL UNIV · PI JOHN P MOORE · 1994 to 2026
$4.3M
NIAID NIH HHS P01 AI110657NIAID NIH HHS R01 AI036082NIAID NIH HHS R01 AI129673NIAID NIH HHS R01 AI140868NIGMS NIH HHS T32 GM007750
6 · The paper itself

Abstract

The envelope glycoprotein (Env) is the sole target for neutralizing antibodies against HIV and the most rapidly evolving, variable part of the virus. High-resolution structures of Env trimers captured in the pre-fusion, closed conformation have revealed a high degree of structural similarity across diverse isolates. Biophysical data, however, indicate that Env is highly dynamic, and the level of dynamics and conformational sampling is believed to vary dramatically between HIV isolates. Dynamic differences likely influence neutralization sensitivity, receptor activation, and overall trimer stability. Here, using hydrogen/deuterium-exchange mass spectrometry (HDX-MS), we have mapped local dynamics across native-like Env SOSIP trimers from diverse isolates. We show that significant differences in epitope order are observed across most sites targeted by broadly neutralizing antibodies. We also observe isolate-dependent conformational switching that occurs over a broad range of timescales. Lastly, we report that hyper-stabilizing mutations that dampen dynamics in some isolates have little effect on others.

Indexed as

ImmunologyMicrobiologyStructural biology

Identifiers

PMID35677643
PMCPMC9167985
OpenAlexW4281286134

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.