The Binding Affinity of Small Molecules with Yam Tyrosinase (Catechol Oxidase): A Biophysical Study [PDF]
Yam tyrosinase has become an economically essential enzyme due to its ease of purification and abundant availability of yam tubers. However, an efficient biochemical and biophysical characterization of yam tyrosinase has not been reported. In the present
Tabassum Mulla +3 more
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Catechol oxidase — structure and activity [PDF]
Recently determined structures of copper-containing plant catechol oxidase in three different catalytic states have provided new insights into the mechanism of this enzyme and its relationship to other copper type-3 proteins. Moreover, the active site of catechol oxidase has been found to be structurally conserved with the oxygen-binding site of a ...
C, Eicken, B, Krebs, J C, Sacchettini
openaire +4 more sources
Case Report: A possible novel adult-onset, progressive MAO-A hypofunction [PDF]
We describe the clinical presentation, pathophysiology, and successful treatment of a previously undocumented adult onset, progressive form of monoamine oxidase A hypofunction.
Stefan Berteau, Erik Armitano
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A new crystal form of Aspergillus oryzae catechol oxidase and evaluation of copper site structures in coupled binuclear copper enzymes. [PDF]
Coupled binuclear copper (CBC) enzymes have a conserved type 3 copper site that binds molecular oxygen to oxidize various mono- and diphenolic compounds.
Leena Penttinen +5 more
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Purification and Enzymatic Properties of Soluble and Membrane-Bound Polyphenol Oxidase from Agaricus bisporus [PDF]
An extraction and purification method for soluble polyphenol oxidase (sPPO) and membrane-bound polyphenol oxidases (mPPO) from Agaricus bisporus was developed involving temperature-induced phase partitioning, fractional precipitation with ammonium ...
HE Xingxing, LEI Jing, GUAN Wenqiang
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Aurone synthase is a catechol oxidase with hydroxylase activity and provides insights into the mechanism of plant polyphenol oxidases. [PDF]
Molitor C, Mauracher SG, Rompel A.
europepmc +2 more sources
Purification and Characterization of Polyphenol Oxidase in the Fruits of Opuntia ficus-indica
Firstly, polyphenol oxidase (PPO) was purified from the fruits of Opuntia ficus-indica using Sepharose 4B–L-tyrosine–p-aminobenzoic acid affinity chromatography, and the enzyme was characterized. The PPO was purified 20.59-fold.
Dudu Demir +2 more
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Towards Efficient Catalysts via Biomimetic Chemistry for Diphenols and Aminophenols Aerobic Oxidation [PDF]
Biomimetic chemistry is a new environment-friendly approach that is inspired by biological processes, to produce new catalysts, and to develop ‘green’ synthetic routes to chemical catalysts based on the benefits of biological systems, aimed to find ...
Abdeslam Mouadili +2 more
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Catalase from the thermophilic fungus Mycothermus thermophilus is a bifunctional enzyme with a secondary phenol oxidase activity (CATPO). MtCATPO catalyses the oxidation of catechol, chlorogenic acid, caffeic acid and (+)-catechin to yield mainly dimers,
Betül Söyler, Zümrüt Begüm Ögel
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Coupled Oxidative Degradation of Blueberry Anthocyanins Induced by Catechol
In order to clarify the degradation pathway of anthocyanins in blueberry during storage and processing,the mechanism of coupled oxidation of anthocyanins-polyphenol oxidase-catechol was systematically studied, and the dose-response relationship among ...
Shaoqian CAO, Kai JIANG, Liang LIU
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