Evidence map›Paper›PMID 26940118›Full record

ArticleNature communications2016

Cyclophilin A stabilizes the HIV-1 capsid through a novel non-canonical binding site.

Chuang Liu, Juan R Perilla, Jiying Ning, Manman Lu, Guangjin Hou, Ruben Ramalho, Benjamin A Himes, Gongpu Zhao, Gregory J Bedwell, In-Ja Byeon and 8 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 110 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
110citing papers in PubMed, 1 pooled it
11.7field-weighted citation impact, top 1% 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

110 citing papers in PubMed, 1 synthesis or guideline pooled it, 158 citations in OpenAlex.

  1. HIV Genome-Wide Protein Associations: a Review of 30 Years of Research.Microbiology and molecular biology reviews : MMBR · 2016
    Pooled it
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. MX2 Mediates Collapse of the HIV-1 Capsid.bioRxiv : the preprint server for biology · 2026
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Exploring the Structural Divergence of HIV and SRLV Lentiviral Capsids.Journal of the American Chemical Society · 2025
    Article
  15. Article
  16. Article
  17. Article
  18. Cyclophilin A Regulates Tripartite Motif 5 Alpha Restriction of HIV-1.International journal of molecular sciences · 2025
    Review
  19. Review
  20. Article

50 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

18 authors at 5 institutions in 2 countries.

Chuang LiuDepartment of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15260, USA.
Juan R PerillaDepartment of Physics and Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA.
Jiying NingDepartment of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15260, USA.
Manman LuPittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15260, USA.
Guangjin HouPittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15260, USA.
Ruben RamalhoDepartment of Physiology and Cell Biology, Ben-Gurion University of the Negev, Be'er-Sheva, 84105, Israel.
Benjamin A HimesDepartment of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15260, USA.
Gongpu ZhaoDepartment of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15260, USA.
Gregory J BedwellDepartment of Microbiology, University of Alabama at Birmingham, Birmingham Alabama 35294, USA.
In-Ja ByeonDepartment of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15260, USA.
Jinwoo AhnDepartment of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15260, USA.
Angela M GronenbornDepartment of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15260, USA.
Peter E PreveligePittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15260, USA.
Itay RoussoDepartment of Physiology and Cell Biology, Ben-Gurion University of the Negev, Be'er-Sheva, 84105, Israel.
Christopher AikenPittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15260, USA.
Tatyana PolenovaPittsburgh Center for HIV Protein Interactions, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15260, USA.
Klaus SchultenDepartment of Physics and Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA.
Peijun ZhangDepartment of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15260, USA.
University of Pittsburgh · USBen-Gurion University of the Negev · ILUniversity of Delaware · USUniversity of Illinois Urbana-Champaign · USUniversity of Alabama at Birmingham · US

Funding

X-Ray Core P50GM082251 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CALERO, GUILLERMO ALBERTO · 2007 to 2018
$48.1M
WHOLE CELL SIMULATIONP41GM104601 · NIGMS · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI TAJKHORSHID, EMAD · 2012 to 2021
$19.0M
Pilot Research Subproject ProgramP30GM110758 · NIGMS · UNIVERSITY OF DELAWARE · PI BEEBE, THOMAS PAUL · 2014 to 2018
$5.8M
System-Level Simulation of a Bioenergetic MembraneR01GM067887 · NIGMS · UNIVERSITY OF ILLINOIS URBANA-CHAMPAIGN · PI TAJKHORSHID, EMAD · 2003 to 2018
$4.0M
Structure and function of membrane receptor signaling complex in bacterial chemotR01GM085043 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI ZHANG, PEIJUN · 2009 to 2013
$1.4M
NIGMS NIH HHS P30 GM110758NIGMS NIH HHS P30GM110758NIGMS NIH HHS P41 GM104601NIGMS NIH HHS P41GM104601NIGMS NIH HHS P50 GM082251NIGMS NIH HHS P50GM082251NIGMS NIH HHS R01 GM067887NIGMS NIH HHS R01GM067887NIGMS NIH HHS R01 GM085043NIGMS NIH HHS R01GM085043
6 · The paper itself

Abstract

The host cell factor cyclophilin A (CypA) interacts directly with the HIV-1 capsid and regulates viral infectivity. Although the crystal structure of CypA in complex with the N-terminal domain of the HIV-1 capsid protein (CA) has been known for nearly two decades, how CypA interacts with the viral capsid and modulates HIV-1 infectivity remains unclear. We determined the cryoEM structure of CypA in complex with the assembled HIV-1 capsid at 8-Å resolution. The structure exhibits a distinct CypA-binding pattern in which CypA selectively bridges the two CA hexamers along the direction of highest curvature. EM-guided all-atom molecular dynamics simulations and solid-state NMR further reveal that the CypA-binding pattern is achieved by single-CypA molecules simultaneously interacting with two CA subunits, in different hexamers, through a previously uncharacterized non-canonical interface. These results provide new insights into how CypA stabilizes the HIV-1 capsid and is recruited to facilitate HIV-1 infection.

Indexed as

Capsid ProteinsCatalytic DomainComputer SimulationCyclophilin AEscherichia coliGene Expression Regulation, ViralHIV-1Magnetic Resonance SpectroscopyModels, MolecularProtein BindingProtein ConformationVirus AssemblyCapsid ProteinsCyclophilin A

Identifiers

PMID26940118
PMCPMC4785225
OpenAlexW2289084400

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.