Results 181 to 190 of about 7,015 (221)

Etmopterus lantern sharks use coelenterazine as the substrate for their luciferin-luciferase bioluminescence system

Biochemical and Biophysical Research Communications, 2021
The lantern shark genus Etmopterus is a group of deep-sea bioluminescent fishes. They emit blue light mainly from the ventral body surface, and the primary biological function is considered to be for camouflage by counterillumination.
Daichi Yano, JOSÉ Paitio, Hiromitsu Endo   +2 more
exaly   +2 more sources

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ChemInform Abstract: Synthesis of Coelenterazine.

ChemInform, 2002
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Maciej Adamczyk, Donald D. Johnson, Phillip G. Mattingly, You Pan, Rajarathnam E. Reddy   +4 more
openaire   +1 more source

Light-emitters involved in the luminescence of coelenterazine

Luminescence, 2000
Coelenterazine emits light by chemi-and bioluminescence reactions, decomposing into coelenteramide and CO(2). To ascertain the light emitters involved, the fluorescence of coelenteramide and five analogues were studies in four kinds of solvent. The results showed that coelenteramides can form five kinds of light emitters, ie unionized (lambda(max) 386 ...
O, Shimomura, K, Teranishi
openaire   +2 more sources

Concise Synthesis ofv-Coelenterazines

Organic Letters, 2015
A novel synthetic method for v-coelenterazine (v-CTZ), which is a vinylene-bridged analog of native CTZ with a large red-shifted luminescence property, is described. The synthesis was achieved in a concise way through the use of three sequential cross-coupling reactions and ring-closing metathesis (RCM).
Takamitsu, Hosoya, Rie, Iimori, Suguru, Yoshida, Yuto, Sumida, Yuiko, Sahara-Miura, Jun-ichi, Sato, Satoshi, Inouye   +6 more
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A biomimetic synthesis of coelenterazine analogs

Tetrahedron Letters, 2002
N-(Trifluoroacetyl)dehydrodipeptides 2-3 were coupled to aminomethylene dimethylacetal derivatives 4 5. The resulting pseudo-tripeptides 6 were stepwise deprotected (carbonyl function (7) then amine function) and in situ cyclized into imidazolopyrazines 1. (C) 2002 Elsevier Science Ltd. All rights reserved.
Devillers, Ingrid, Arrault, Axelle, Olive, Gilles, Marchand-Brynaert, Jacqueline   +3 more
openaire   +1 more source

Synthetic Bioluminescent Coelenterazine Derivatives

2016
The development of coelenterazine (CTZ) derivatives resulting in superior optical characteristics is an efficient method to extend the range of its possible applications. Here, we describe the synthesis of three C-6 substituted CTZ derivatives retaining the recognition by Renilla luciferase (RLuc) and its derivatives.
Ryo, Nishihara, Daniel, Citterio, Koji, Suzuki   +2 more
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Enzymatic activity of albumin shown by coelenterazine chemiluminescence

Luminescence, 2012
ABSTRACTBioluminescence, the emission of light from live organisms, occurs in 18 phyla and is the major communication system in the deep sea. It has appeared independently many times during evolution but its origins remain unknown. Coelenterazine bioluminescence discovered in luminous jellyfish is the most common chemistry causing bioluminescence in ...
N, Vassel, C D, Cox, R, Naseem, V, Morse, R T, Evans, R L, Power, A, Brancale, K T, Wann, A K, Campbell   +8 more
openaire   +2 more sources

Coelenterazine‐dependent Bioluminescence in the Cyclopoid Copepod, Triconia conifera

ChemBioChem
Species in the cyclopoid copepod Triconia are known to be bioluminescent, emitting blue light by mechanical stimulus. In this study in Triconica conifera, we identified the presence of luciferase activity to coelenterazine, a substrate for the ...
Gaku Mizuno, Shinji Shimode, Y. Nishibe, Yuichi Oba   +3 more
semanticscholar   +1 more source

Coelenterazine Analogs as Chemiluminescent Probe for Superoxide Anion

Analytical Biochemistry, 1997
Eleven new coelenterazine analogs containing the 3,7-dihydroimidazo[1,2-alpha]pyrazin-3-one structure were synthesized. The superoxide-triggered chemiluminescence of these compounds was investigated using the hypoxanthine-xanthine oxidase system in comparison with four known compounds.
K, Teranishi, O, Shimomura
openaire   +2 more sources

Enzymatic conversion of dehydrocoelenterazine to coelenterazine using FMN-bound flavin reductase of NAD(P)H:FMN oxidoreductase.

Biochemical and Biophysical Research Communications - BBRC, 2021
Coelenterazine (CTZ) is known as luciferin (a substrate) for the luminescence reaction with luciferase (an enzyme) in marine organisms and is unstable in aqueous solutions.
S. Inouye, Mitsuhiro Nakamura, T. Hosoya
semanticscholar   +1 more source