Evidence map›Paper›PMID 33656312›Full record

ArticleACS nano2021

Interferon-Induced Transmembrane Protein 3 Blocks Fusion of Diverse Enveloped Viruses by Altering Mechanical Properties of Cell Membranes.

Xiangyang Guo, Jan Steinkühler, Mariana Marin, Xiang Li, Wuyuan Lu, Rumiana Dimova, Gregory B Melikyan

Open access · greenAbstract read
In one paragraph

Article in ACS nano, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed
10.4field-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

67 citing papers in PubMed, 98 citations in OpenAlex.

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  18. IFITM2 Modulates Endocytosis Maintaining Neural Stem Cells in Developing Neocortex.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
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7 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

7 authors at 4 institutions in 3 countries.

Xiangyang GuoDepartment of Pediatrics, Emory University School of Medicine, Atlanta, Georgia 30322, United States.ORCID 0000-0002-8463-2755
Jan SteinkühlerMax Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany.ORCID 0000-0003-4226-7945
Mariana MarinDepartment of Pediatrics, Emory University School of Medicine, Atlanta, Georgia 30322, United States.
Xiang LiSchool of Pharmacy, Second Military Medical University, Shanghai, 200433, China.
Wuyuan LuInstitute of Human Virology and Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland 21201, United States.ORCID 0000-0003-1318-9968
Rumiana DimovaMax Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany.
Gregory B MelikyanDepartment of Pediatrics, Emory University School of Medicine, Atlanta, Georgia 30322, United States.ORCID 0000-0001-5385-3013
Emory University · USMax Planck Institute of Colloids and Interfaces · DESecond Military Medical University · CNUniversity of Maryland, Baltimore · US

Funding

Inhibition of viral entry by interferon-induced proteinsR01AI135806 · NIAID · EMORY UNIVERSITY · PI MELIKIAN, GREGORY B · 2018 to 2022
$1.9M
NIAID NIH HHS R01 AI135806
6 · The paper itself

Abstract

Interferon-induced transmembrane protein 3 (IFITM3) potently inhibits entry of diverse enveloped viruses by trapping the viral fusion at a hemifusion stage, but the underlying mechanism remains unclear. Here, we show that recombinant IFITM3 reconstituted into lipid vesicles induces negative membrane curvature and that this effect maps to its small amphipathic helix (AH). We demonstrate that AH (i) partitions into lipid-disordered domains where IAV fusion occurs, (ii) induces negative membrane curvature, and (iii) increases lipid order and membrane stiffness. These effects on membrane properties correlate with the fusion-inhibitory activity, as targeting the ectopically expressed AH peptide to the cytoplasmic leaflet of the cell plasma membrane diminishes IAV-cell surface fusion induced by exposure to acidic pH. Our results thus imply that IFITM3 inhibits the transition from hemifusion to full fusion by imposing an unfavorable membrane curvature and increasing the order and stiffness of the cytoplasmic leaflet of endosomal membranes. Our findings reveal a universal mechanism by which cells block entry of diverse enveloped viruses.

Indexed as

Cell MembraneVirus InternalizationEndosomesHumansMembrane ProteinsOrthomyxoviridaeRNA-Binding ProteinsIFITM3 protein, humanMembrane ProteinsRNA-Binding Proteinsamphipathic helixhemifusionIFITM3membrane curvaturemembrane rigidityviral fusion

Identifiers

PMID33656312
PMCPMC8159881
OpenAlexW3135661508

What Socratic holds

Textmetadata
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 Socratic graph.