Results 171 to 180 of about 19,268 (196)
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Assay of catechol oxidase—a critical comparison of methods
Phytochemistry, 1966Abstract Manometric, polarographic, chronometric and spectrophotometric methods for the determination of catechol oxidase activity were critically compared. Where possible, product formation, disappearance of substrate and ratios between oxygen uptake and substrate disappearance were determined.
A.M. Mayer, E. Harel, R. Ben-Shaul
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Phenylhydrazine, a specific irreversible inhibitor of catechol oxidase
Phytochemistry, 1971Abstract Phenylhydrazine is shown to specifically inhibit a number of catechol oxidases from plant tissues. A laccase-like enzyme from peaches is not inhibited while ascorbic oxidase is only partly inhibited by relatively high concentrations of the inhibitor.
H.R. Lerner +3 more
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Computational Design of a Highly Stable Dicopper Catechol Oxidase
Journal of the American Chemical SocietyType 3 (T3) Cu proteins play essential roles in binding and activating molecular oxygen (O2) and are prevalent across all domains of life. Despite sharing the same coordination motif, T3 Cu proteins display divergent functions: hemocyanin transports O2, while tyrosinase catalyzes the hydroxylation of monophenols and the subsequent oxidation of ...
Vanessa H. Eng +9 more
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Limitations of the quantitative cytochemical assay of catechol oxidase in melanoma cells
The Histochemical Journal, 1988The cytochemical quantification of catechol oxidase activity in fixed B16 melanoma cells was investigated using dopa as the substrate. Inhibitors showed that peroxidases do not significantly interfere. The kinetics of melanin formation were studied initially in solution with purified catechol oxidase.
A C, Croce +4 more
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Crystal structure of a plant catechol oxidase containing a dicopper center
Nature Structural Biology, 1998Catechol oxidases are ubiquitous plant enzymes containing a dinuclear copper center. In the wound-response mechanism of the plant they catalyze the oxidation of a broad range of ortho-diphenols to the corresponding o-quinones coupled with the reduction of oxygen to water. The crystal structures of the enzyme from sweet potato in the resting dicupric Cu(
T, Klabunde +3 more
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The Intracellular Location of Catechol Oxidase
Annals of Botany, 1979I. SHOMER +3 more
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Catechol Oxidase Activity in Grapes and Wine
American Journal of Enology and Viticulture, 1978M. Kidron, E. Harel, A. M. Mayer
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