Evidence map›Paper›PMID 25341086›Full record

ArticleJournal of the American Chemical Society2014

Genetically encoded optochemical probes for simultaneous fluorescence reporting and light activation of protein function with two-photon excitation.

Ji Luo, Rajendra Uprety, Yuta Naro, Chungjung Chou, Duy P Nguyen, Jason W Chin, Alexander Deiters

Open access · hybridAbstract read
In one paragraph

Article in Journal of the American Chemical Society, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed
6.8field-weighted citation impact, top 3% 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

72 citing papers in PubMed, 167 citations in OpenAlex.

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  5. A hydrophobic photouncaging reaction to profile the lipid droplet interactome in tissues.Proceedings of the National Academy of Sciences of the United States of America · 2025
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12 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 2 countries.

Ji LuoDepartment of Chemistry, University of Pittsburgh , Pittsburgh, Pennsylvania 15260, United States.
Rajendra Uprety
Yuta Naro
Chungjung Chou
Duy P Nguyen
Jason W Chin
Alexander Deiters
University of Pittsburgh · USNorth Carolina State University · USMedical Research Council · GBMRC Laboratory of Molecular Biology · GB

Funding

VECTOR CORE FACILITYP30CA047904 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Leonard J. Appleman · 1988 to 2026
$158.0M
Medical Research Council U105181009Medical Research Council UD99999908NCI NIH HHS P30 CA047904NCI NIH HHS P30CA047904
6 · The paper itself

Abstract

The site-specific incorporation of three new coumarin lysine analogues into proteins was achieved in bacterial and mammalian cells using an engineered pyrrolysyl-tRNA synthetase system. The genetically encoded coumarin lysines were successfully applied as fluorescent cellular probes for protein localization and for the optical activation of protein function. As a proof-of-principle, photoregulation of firefly luciferase was achieved in live cells by caging a key lysine residue, and excellent OFF to ON light-switching ratios were observed. Furthermore, two-photon and single-photon optochemical control of EGFP maturation was demonstrated, enabling the use of different, potentially orthogonal excitation wavelengths (365, 405, and 760 nm) for the sequential activation of protein function in live cells. These results demonstrate that coumarin lysines are a new and valuable class of optical probes that can be used for the investigation and regulation of protein structure, dynamics, function, and localization in live cells. The small size of coumarin, the site-specific incorporation, the application as both a light-activated caging group and as a fluorescent probe, and the broad range of excitation wavelengths are advantageous over other genetically encoded photocontrol systems and provide a precise and multifunctional tool for cellular biology.

Indexed as

Molecular ProbesPhotonsChromatography, LiquidFluorescenceHEK293 CellsHumansMethanosarcina barkeriProteinsTandem Mass SpectrometryMolecular ProbesProteins

Identifiers

PMID25341086
PMCPMC4333581
OpenAlexW2312277739

What OpenQuestion holds

Textmetadata
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.