Results 181 to 190 of about 14,327 (227)

Molecular orbital calculations for firefly luciferin

open access: yesMolecular orbital calculations for firefly luciferin
openaire  

Advances in the knowledge of light emission by firefly luciferin and oxyluciferin

Journal of Photochemistry and Photobiology B: Biology, 2012
Firefly luciferase is the most important and studied bioluminescence system. Due to very interesting characteristics, this system has gained numerous biomedical, pharmaceutical and bioanalytical applications, among others. In order to improve the use of this system, various researchers have tried to understand experimentally the colour of ...
Luis Pinto da Silva
exaly   +3 more sources

Click Reaction Based on the Biosynthesis of Firefly Luciferin

Chemistry Letters, 2017
Novel click chemistry was developed based on the biosynthetic process of firefly luciferin, which includes an ideal coupling of a cyanothiazole residue with cysteine. Among various biomimetic couplings of nitriles with cysteine derivatives, the approach using 4-cyanopyridine and cysteine methyl ester provided a very rapid and quantitative conversion to
Tsuyoshi Saitoh   +2 more
exaly   +2 more sources

Stereoisomeric bio-inversion key to biosynthesis of fireflyd-luciferin

open access: yesFEBS Letters, 2006
The chirality of the luciferin substrate is critical to the luciferin–luciferase reaction producing bioluminescence. In firefly, the biosynthetic pathway of d-luciferin is still unclear, although it can be synthesized in vitro from d-cysteine.
Kazuki Niwa   +2 more
exaly   +2 more sources

Theoretical Study on Storage and Release of Firefly Luciferin

Photochemistry and Photobiology, 2021
AbstractAmong numerous bioluminescent organisms, firefly is the most studied one. Recent experiment proposed that sulfoluciferin (SLH2) may serve as a storage form of luciferin (LH2). In the present article, we employed density functional theory calculation to uncover the mechanism and detailed process of the storage and release reactions.
Ya‐Jie Guo   +2 more
openaire   +2 more sources

Novel Heterocyclic Analogues of Firefly Luciferin

Biochemistry, 2012
Five novel firefly luciferin analogues in which the benzothiazole ring system of the natural substrate was replaced with benzimidazole, benzofuran, benzothiophene, benzoxazole, and indole were synthesized. The fluorescence, bioluminescence, and kinetic properties of the compounds were evaluated with recombinant Photinus pyralis wild type luciferase ...
Carolyn C, Woodroofe   +7 more
openaire   +2 more sources

The preparation and properties of crystalline firefly luciferin

Archives of Biochemistry and Biophysics, 1957
Abstract 1. 1. The purification and preparation of crystalline firefly luciferin is described. From 15,000 firefly lanterns approximately 9 mg. of crystalline luciferin can be prepared. 2. 2. The empirical formula appears to be C13H12N2S2O3. Infrared spectra and microorganic spot tests of luciferin and various derivatives indicate that two of
B, BITLER, W D, McELROY
openaire   +2 more sources

Chemiluminescence of Firefly Luciferin without Enzyme

Science, 1962
We have been able to produce chemiluminescence in firefly luciferin without utilizing the enzyme luciferase. Following the analogous mechanism of the chemiluminescence of luminol in the organic solvent dimethyl sulfoxide, we have prepared synthetically the methyl ester of luciferin, the phosphate ester of luciferin and luciferyl adenylate ...
H H, SELIGER, W D, McELROY
openaire   +2 more sources

Differential Effect of Azetidine Substitution in Firefly Luciferin Analogues

ChemBioChem, 2021
AbstractReplacing an N,N‐dimethylamino group in a classical fluorophore with a four membered azetidine ring provides an improved luminescence quantum yield. Herein, we extended this strategy to bioluminescent firefly luciferin analogues and evaluated its general validity.
Yuma, Ikeda   +5 more
openaire   +2 more sources

Firefly luciferin as a multifunctional chemiluminescence molecule

Photochemical & Photobiological Sciences, 2013
The chemiluminescence properties of firefly luciferin were studied, in a variety of chemical systems different from those in which it is usually studied. It was found that luciferin is a multifunctional chemiluminescence molecule, as it can behave as a chemiluminescence sensitizer, an emitter and a substrate.
Luís, Pinto da Silva   +1 more
openaire   +2 more sources

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