Results 21 to 30 of about 20,124 (183)
Biosensors, 2022 Metallic nanoparticles potentially have wide practical applications in various fields of science and industry. In biosensorics, they usually act as catalysts or nanozymes (NZs) and as mediators of electron transfer.
Nataliya Stasyuk +7 more
doaj +1 more source
Beyond monofunctionality: structural perspectives on phenol oxidase side activity in a catalase. [PDF]
Acta Crystallogr D Struct BiolStructural and biochemical characterization of the extracellular fungal catalase ClCPO uncovers an unexpected phenol oxidase promiscuity. Crystal structures, substrate docking and electron‐transfer pathway analysis identify ligand‐binding regions and support a working mechanistic model for catalase‐associated phenol oxidase activity.Catalases are ...
Ferousi C +5 more
europepmc +2 more sources
Catechol oxidase — structure and activity [PDF]
Current Opinion in Structural Biology, 1999 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 ...
Eicken, Christoph +2 more
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Structural and spectroscopic studies of a model for catechol oxidase [PDF]
JBIC Journal of Biological Inorganic Chemistry, 2008 A binuclear copper complex, [Cu2(BPMP) (OAc)2][ClO4] x H2O, has been prepared using the binucleating ligand 2,6-bis[bis(pyridin-2-ylmethylamino)methyl]-4-methylphenol (H-BPMP). The X-ray crystal structure reveals the copper centers to have a five-coordinate square pyramidal geometry, with the acetate ligands bound terminally.
Smith, S. J. +6 more
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A Novel Catechol Oxidase Enzyme Electrode for the Specific Determination of Catechol
Bioscience, Biotechnology, and Biochemistry, 1998 An enzyme electrode for the specific determination of catechol was developed by using catechol oxidase (EC 1.10.3.1) from eggplant (Solanum melangena L.) in combination with a dissolved oxygen probe. Optimization studies of the prepared catechol oxidase enzyme electrode established a phosphate buffer 50 mM at pH 7.0 and 35°C to provide the optimum ...
Dinckaya, E +5 more
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PHARMACOLOGICAL STUDIES ON VERNONIA AMYGDALINA (DEL) AND TITHONIA DIVERSIFOLIA (GRAY) [PDF]
Veterinary Medical Journal - Giza, 1994 The plants examined contained carbohydrates and for glucosides, catechol tannins, flavonoid glycosides, sterols and/or triterpenes, oxidase enzyme present or absent, lactones and /or esters and volatile substance.
A HAMOWIA, A SAFFAF
doaj +1 more source
THE GENETIC CONTROL AND BIOCHEMICAL MODIFICATION OF CATECHOL OXIDASE IN MAIZE [PDF]
Genetics, 1973 ABSTRACT Three isozyme variants of catechol oxidase have been shown to be determined by alleles of a gene, Cx, which has been located on chromosome 10 less than 0.1 recombination units from the endosperm marker du 1.—The extractable form of the enzyme is modified by an endogeneous "modifier" which appears to function as an enzyme ...
T, Pryor, D, Schwartz
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Bananas decrease acetaminophen potency in in vitro assays. [PDF]
PLoS ONE, 2018 Edible portions of bananas contain high levels of polyphenol oxidase, which catalyzes reactions in the melanin formation pathway. Tyrosine, a physiological substrate of polyphenol oxidase, has an analogous structure to acetaminophen.
Yoshihiro Uesawa, Naotaka Tsuji
doaj +1 more source
Chemosensors, 2014 Inhibition-based biosensors were developed by immobilizing tyrosinase (Tyr, polyphenol oxidase) from the crude extract of avocado fruit on electrochemically prepared polypyrrole (PPy) films.
André Brisolari, Débora Gonçalves
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Angewandte Chemie, EarlyView.Sun et al. proposed an axial boron coordination strategy to reconstruct the stereostructure of Cu SAzymes and enable them to serve as efficient laccase mimics for high‐throughput smart sensor array detection of phenolic pollutants in water phases. ABSTRACT Developing single‐atom nanozymes with stereoconfigurations is a new paradigm for biomimetic ...
Qijun Sun +8 more
wiley +2 more sources