A new crystal form of Aspergillus oryzae catechol oxidase and evaluation of copper site structures in coupled binuclear copper enzymes. [PDF]
PLoS ONE, 2018 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
doaj +3 more sources
Conversion of walnut tyrosinase into a catechol oxidase by site directed mutagenesis. [PDF]
Sci Rep, 2020 Polyphenol oxidases (PPOs) comprise tyrosinases (TYRs) and catechol oxidases (COs), which catalyse the initial reactions in the biosynthesis of melanin.
Panis F +3 more
europepmc +2 more sources
The Binding Affinity of Small Molecules with Yam Tyrosinase (Catechol Oxidase): A Biophysical Study [PDF]
Biochemistry Research International, 2019 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
doaj +2 more sources
Case Report: A possible novel adult-onset, progressive MAO-A hypofunction [PDF]
Frontiers in NeuroscienceWe 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
doaj +2 more sources
Catechol oxidase activity of comparable dimanganese and dicopper complexes.
Dalton Transactions, 2018 Dicopper complexes proved to be more reactive catechol oxidase mimics when compared to dimanganese complexes supported by identical ligand frameworks.
Adriana M. Magherusan +3 more
semanticscholar +5 more sources
ACS Applied Materials & Interfaces, 2017 Oxidases are found to play a growing role in providing functional chemistry to marine adhesives for the permanent attachment of macrofouling organisms. Here, we demonstrate active peroxidase and lysyl oxidase enzymes in the adhesive layer of adult Amphibalanus amphitrite barnacles through live staining, proteomic analysis, and competitive enzyme assays
Christopher R. So +14 more
semanticscholar +3 more sources
Aurone synthase is a catechol oxidase with hydroxylase activity and provides insights into the mechanism of plant polyphenol oxidases. [PDF]
Proc Natl Acad Sci U S A, 2016 Molitor C, Mauracher SG, Rompel A.
europepmc +2 more sources
Purification and Enzymatic Properties of Soluble and Membrane-Bound Polyphenol Oxidase from Agaricus bisporus [PDF]
Shipin Kexue, 2023 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
doaj +1 more source
Purification and Characterization of Polyphenol Oxidase in the Fruits of Opuntia ficus-indica
Biology, 2023 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
doaj +1 more source
Towards Efficient Catalysts via Biomimetic Chemistry for Diphenols and Aminophenols Aerobic Oxidation [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2023 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
doaj +1 more source