Evidence map›Paper›PMID 33581056›Full record

ArticleCell chemical biology2021

A high-performance genetically encoded fluorescent biosensor for imaging physiological peroxynitrite.

Zhijie Chen, Shen Zhang, Xinyu Li, Hui-Wang Ai

Open access · bronzeAbstract read
In one paragraph

Article in Cell chemical biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

21 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
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  6. Review
  7. Small molecule probes for peroxynitrite detection.Redox biochemistry and chemistry · 2024
    Article
  8. Review
  9. Review
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  14. ACS omega · 2023
    Review
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  17. Review
  18. Article
  19. Review
  20. In Vivo Imaging with Genetically Encoded Redox Biosensors.International journal of molecular sciences · 2020
    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

4 authors at 2 institutions in 1 country.

Zhijie ChenDepartment of Chemistry, University of California, Riverside, Riverside, CA 92521, USA.
Shen ZhangDepartment of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908, USA; Center for Membrane and Cell Physiology, University of Virginia, Charlottesville, VA 22908, USA; Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA.
Xinyu LiDepartment of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908, USA; Center for Membrane and Cell Physiology, University of Virginia, Charlottesville, VA 22908, USA.
Hui-Wang AiDepartment of Chemistry, University of California, Riverside, Riverside, CA 92521, USA; Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908, USA; Center for Membrane and Cell Physiology, University of Virginia, Charlottesville, VA 22908, USA; Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA; The UVA Cancer Center, University of Virginia, Charlottesville, VA 22908, USA. Electronic address: huiwang.ai@virginia.edu.
University of California, Riverside · USUniversity of Virginia · US

Funding

Red and Far-Red Fluorescent Biosensors for Compartmentalized Redox SignalingR01GM129291 · NIGMS · UNIVERSITY OF VIRGINIA · PI AI, HUIWANG · 2018 to 2021
$2.1M
A Fluorescent Toolkit for Imaging Reactive Oxygen Species (ROS)R01GM118675 · NIGMS · UNIVERSITY OF VIRGINIA · PI AI, HUIWANG · 2016 to 2019
$1.4M
NIGMS NIH HHS R01 GM118675NIGMS NIH HHS R01 GM129291
6 · The paper itself

Abstract

Peroxynitrite is a reactive nitrogen species (RNS) that plays critical roles in signal transduction, stress response, and numerous human diseases. Advanced molecular tools that permit the selective, sensitive, and noninvasive detection of peroxynitrite are essential for understanding its pathophysiological functions. Here, we present pnGFP-Ultra, a high-performance, reaction-based, genetically encodable biosensor for imaging peroxynitrite in live cells. pnGFP-Ultra features a p-boronophenylalanine-modified chromophore as the sensing moiety and exhibits a remarkable ~110-fold fluorescence turn-on response toward peroxynitrite while displaying virtually no cross-reaction with other reactive oxygen/nitrogen species. To facilitate the expression of pnGFP-Ultra in mammalian cells, we engineered an efficient noncanonical amino acid (ncAA) expression system that is broadly applicable to the mammalian expression of ncAA-containing proteins. pnGFP-Ultra robustly detected peroxynitrite production in activated macrophages and primary glial cells. pnGFP-Ultra fills an important technical gap and represents a valuable addition to the molecular toolbox for probing RNS biology.

Indexed as

Biosensing TechniquesAnimalsFemaleFluorescent DyesHEK293 CellsHumansMaleMiceMice, Inbred BALB CPeroxynitrous AcidRAW 264.7 CellsFluorescent DyesPeroxynitrous Acidbiosensorfluorescence microscopyfluorescent probesgenetic code expansionlive-cell imagingnoncanonical amino acidsperoxynitriteperoxynitrite productionprotein engineeringreactive nitrogen species

Identifiers

PMID33581056
PMCPMC8313648
OpenAlexW3132468546

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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.