Results 1 to 10 of about 21,179 (270)

A practical, biomimetic, one-pot synthesis of firefly luciferin [PDF]

open access: goldScientific Reports
The bioluminescence reaction of firefly luciferase with D-luciferin has become an indispensable imaging technique in modern biology and life science experiments, but the high cost of D-luciferin is limiting its further application.
Maria Kato   +4 more
doaj   +6 more sources

Biosensing firefly luciferin synthesis in bacteria reveals a cysteine-dependent quinone detoxification route in Coleoptera [PDF]

open access: goldScientific Reports, 2022
Luciferin biosynthetic origin and alternative biological functions during the evolution of beetles remain unknown. We have set up a bioluminescent sensing method for luciferin synthesis from cysteine and benzoquinone using E.
Daniel Rangel de Souza   +3 more
doaj   +6 more sources

How to Select Firefly Luciferin Analogues for In Vivo Imaging. [PDF]

open access: goldInt J Mol Sci, 2021
Bioluminescence reactions are widely applied in optical in vivo imaging in the life science and medical fields. Such reactions produce light upon the oxidation of a luciferin (substrate) catalyzed by a luciferase (enzyme), and this bioluminescence enables the quantification of tumor cells and gene expression in animal models.
Saito-Moriya R   +6 more
europepmc   +6 more sources

Biosynthesis of firefly luciferin in adult lantern: decarboxylation of L-cysteine is a key step for benzothiazole ring formation in firefly luciferin synthesis. [PDF]

open access: yesPLoS ONE, 2013
Bioluminescence in fireflies and click beetles is produced by a luciferase-luciferin reaction. The luminescence property and protein structure of firefly luciferase have been investigated, and its cDNA has been used for various assay systems.
Yuichi Oba   +4 more
doaj   +5 more sources

Firefly luciferase can use L-luciferin to produce light [PDF]

open access: bronzeBiochemical Journal, 1996
l-Luciferin is a competitive inhibitor of firefly luciferase with a Ki between 3 and 4 μM. Furthermore l-luciferin can serve as an alternative substrate for light production. Catalysis of l-luciferin can be observed in the absence of, or at low concentrations of, d-luciferin.
Nicolas Lembert
openalex   +4 more sources

Regulatory effects of ATP and luciferin on firefly luciferase activity [PDF]

open access: bronzeBiochemical Journal, 1995
ATP and luciferin are not only substrates of firefly luciferase, but can, in addition, modulate its activity. High concentrations of luciferin induce a conformational change of the enzyme that temporarily reduces the catalytic rate. Re-activation takes approx.
Nicolas Lembert, L Å Idahl
openalex   +4 more sources

A QM/MM Study on the Initiation Reaction of Firefly Bioluminescence—Enzymatic Oxidation of Luciferin [PDF]

open access: goldMolecules, 2021
Among all bioluminescent organisms, the firefly is the most famous, with a high luminescent efficiency of 41%, which is widely used in the fields of biotechnology, biomedicine and so on.
Mohan Yu, Yajun Liu
doaj   +2 more sources

Important Site of Luciferin on Firefly Bioluminescence [PDF]

open access: bronzeECS Transactions, 2008
The firefly bioluminescence is well known in the world. Although its emission efficiency is assumed the best of the earth, a color variation is aspired in top science. For producing color variation, we have innovated new technology by analyzing biofunctions.
Shôjirô Maki
openalex   +2 more sources

Luciferase expression and bioluminescence does not affect tumor cell growth in vitro or in vivo [PDF]

open access: yesMolecular Cancer, 2010
Live animal imaging is becoming an increasingly common technique for accurate and quantitative assessment of tumor burden over time. Bioluminescence imaging systems rely on a bioluminescent signal from tumor cells, typically generated from expression of ...
Rasko John EJ   +4 more
doaj   +3 more sources

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