Evidence map›Paper›PMID 36638173›Full record

ArticleScience advances2023

Structural basis for recruitment of host CypA and E3 ubiquitin ligase by maedi-visna virus Vif.

Yingxia Hu, Ragna B Gudnadóttir, Kirsten M Knecht, Fidel Arizaga, Stefán R Jónsson, Yong Xiong

Open access · goldAbstract read
In one paragraph

Article in Science advances, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.6field-weighted citation impact, top 26% 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

2 citing papers in PubMed, 2 citations in OpenAlex.

  1. Exploring the Structural Divergence of HIV and SRLV Lentiviral Capsids.Journal of the American Chemical Society · 2025
    Article
  2. 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 2 institutions in 2 countries.

Yingxia HuDepartment of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, USA.ORCID 0000-0003-1395-0016
Ragna B GudnadóttirInstitute for Experimental Pathology, University of Iceland, Keldur, Reykjavik 112, Iceland.
Kirsten M KnechtDepartment of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, USA.ORCID 0000-0001-5892-3770
Fidel ArizagaDepartment of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, USA.ORCID 0000-0002-8250-3060
Stefán R JónssonInstitute for Experimental Pathology, University of Iceland, Keldur, Reykjavik 112, Iceland.ORCID 0000-0003-4987-529X
Yong XiongDepartment of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, USA.ORCID 0000-0001-9625-9313
Yale University · USUniversity of Iceland · IS

Funding

PREDOCTORAL PROGRAM IN BIOPHYSICST32GM008283 · NIGMS · YALE UNIVERSITY · PI XIONG, YONG · 1988 to 2022
$10.5M
Multifaceted interactions between lentiviral Vif and host molecules for viral infectivity enhancementR37AI116313 · NIAID · YALE UNIVERSITY · PI Yong Xiong · 2021 to 2026
$3.2M
Predoctoral Program in BiophysicsT32GM149438 · NIGMS · YALE UNIVERSITY · PI Yong Xiong, Elsa Chui Ying Yan · 2023 to 2026
$2.6M
NIAID NIH HHS R37 AI116313NIGMS NIH HHS T32 GM008283NIGMS NIH HHS T32 GM149438
6 · The paper itself

Abstract

Lentiviral Vif molecules target the host antiviral APOBEC3 proteins for destruction in cellular ubiquitin-proteasome pathways. Different lentiviral Vifs have evolved to use the same canonical E3 ubiquitin ligase complexes, along with distinct noncanonical host cofactors for their activities. Unlike primate lentiviral Vif, which recruits CBFβ as the noncanonical cofactor, nonprimate lentiviral Vif proteins have developed different cofactor recruitment mechanisms. Maedi-visna virus (MVV) sequesters CypA as the noncanonical cofactor for the Vif-mediated ubiquitination of ovine APOBEC3s. Here, we report the cryo-electron microscopy structure of MVV Vif in complex with CypA and E3 ligase components. The structure, along with our biochemical and functional analysis, reveals both conserved and unique structural elements of MVV Vif and its common and distinct interaction modes with various cognate cellular proteins, providing a further understanding of the evolutionary relationship between lentiviral Vifs and the molecular mechanisms by which they capture different host cofactors for immune evasion activities.

Indexed as

Visna-maedi virusAnimalsCryoelectron MicroscopyGene Products, vifImmune EvasionSheepUbiquitin-Protein LigasesGene Products, vifUbiquitin-Protein Ligases

Identifiers

PMID36638173
PMCPMC9839330
OpenAlexW4316015942

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.