Evidence map›Paper›PMID 24282155›Full record

ArticleJournal of biomolecular screening2014

Development and validation of a high-content bimolecular fluorescence complementation assay for small-molecule inhibitors of HIV-1 Nef dimerization.

Jerrod A Poe, Laura Vollmer, Andreas Vogt, Thomas E Smithgall

Open access · hybridAbstract read
In one paragraph

Article in Journal of biomolecular screening, 2014. 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
1.2field-weighted citation impact, top 22% 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

4 authors at 2 institutions in 1 country.

Jerrod A Poe1Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
Laura Vollmer
Andreas Vogt
Thomas E Smithgall
Discovery Institute · USUniversity of Pittsburgh · US

Funding

VECTOR CORE FACILITYP30CA047904 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Jessie Nedrow · 1988 to 2026
$158.0M
Small Molecule Inhibitors of HIV Nef SignalingR01AI057083 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SMITHGALL, THOMAS E. · 2003 to 2019
$5.1M
Structural Biology of HIV-1 Nef with Host Effectors and Small Molecule InhibitorsR01AI102724 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI ALVARADO, JOHN JEFF, SMITHGALL, THOMAS E. · 2013 to 2017
$1.9M
NCI NIH HHS P30 CA047904NIAID NIH HHS R01 AI057083NIAID NIH HHS R01 AI102724
6 · The paper itself

Abstract

Nef is a human immunodeficiency virus 1 (HIV-1) accessory factor essential for viral pathogenesis and AIDS progression. Many Nef functions require dimerization, and small molecules that block Nef dimerization may represent antiretroviral drug leads. Here we describe a cell-based assay for Nef dimerization inhibitors based on bimolecular fluorescence complementation (BiFC). Nef was fused to nonfluorescent, complementary fragments of yellow fluorescent protein (YFP) and coexpressed in the same cell population. Dimerization of Nef resulted in juxtaposition of the YFP fragments and reconstitution of the fluorophore. For automation, the Nef-YFP fusion proteins plus a monomeric red fluorescent protein (mRFP) reporter were expressed from a single vector, separated by picornavirus "2A" linker peptides to permit equivalent translation of all three proteins. Validation studies revealed a critical role for gating on the mRFP-positive subpopulation of transfected cells, as well as use of the mRFP signal to normalize the Nef-BiFC signal. Nef-BiFC/mRFP ratios resulting from cells expressing wild-type versus dimerization-defective Nef were very clearly separated, with Z factors consistently in the 0.6 to 0.7 range. A fully automated pilot screen of the National Cancer Institute Diversity Set III identified several hit compounds that reproducibly blocked Nef dimerization in the low micromolar range. This BiFC-based assay has the potential to identify cell-active small molecules that directly interfere with Nef dimerization and function.

Indexed as

Drug DiscoveryHigh-Throughput Screening AssaysMicroscopy, FluorescenceAnti-HIV AgentsCell LineDrug Evaluation, PreclinicalGene ExpressionGenes, ReporterHumansLuminescent Proteinsnef Gene Products, Human Immunodeficiency VirusProtein MultimerizationReproducibility of ResultsSmall Molecule LibrariesAnti-HIV AgentsLuminescent Proteinsnef Gene Products, Human Immunodeficiency Virusnef protein, Human immunodeficiency virus 1Small Molecule LibrariesBiFCfluorescence complementationhigh-content screeningHIV-1HIV-1 NefYFP

Identifiers

PMID24282155
PMCPMC4006692
OpenAlexW2139719511

What OpenQuestion holds

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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 OpenQuestion graph.