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1. Full Text A glucose BioFuel cell implanted in Rats
by Cinquin, Philippe and Gondran, Chantal and Giroud, Fabien and Mazabrard, Simon and Pellissier, Aymeric and Boucher, François and Alcaraz, Jean-Pierre and Gorgy, Karine and Lenouvel, François and Mathé, Stéphane and Porcu, Paolo and Cosnier, Serge
PLoS ONE, ISSN 1932-6203, 2010, Volume 5, Issue 5, p. e10476
Powering future generations of implanted medical devices will require cumbersome transcutaneous energy transfer or harvesting energy from the human body. No... 
OXIDASE | FUEL-CELLS | BIOLOGY | Glucose Oxidase - metabolism | Prosthesis Implantation | Implants, Experimental | Oxidation-Reduction | Rats, Wistar | Bioelectric Energy Sources | Rats | Ubiquinone - metabolism | Male | Electrodes | Animals | Time Factors | Catechol Oxidase - metabolism | Glucose - metabolism | Urea - metabolism | Urease - metabolism | Hydrogen-Ion Concentration | Oxidases | Biomass energy | Implants, Artificial | Prosthesis | Fuel cell industry | Fuel cells | Quinone | Physiological aspects | Glucose | Thermoelectricity | Dextrose | Glucose oxidase | Medical equipment | Surgical implants | Biomass | pH effects | Fuels | Energy harvesting | Biocatalysts | Vibrations | Chloride ions | Anions | Ubiquinone | Chlorides | Biochemical fuel cells | pH | Physiology | Enzymes | Medical devices | Accumulators | Organs | Fuel technology | Uric acid | Biofuels | Substrates | Composite materials | Pacemakers | Artificial organs | Biosensors | Energy transfer | Power | Polyphenoloxidase | Polyphenol oxidase | Catechol Oxidase | Glucose Oxidase | Urease | Tissues and Organs | Life Sciences | Urea | Human health and pathology
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2. Full Text Novel Roles for the Polyphenol Oxidase Enzyme in Secondary Metabolism and the Regulation of Cell Death in Walnut
by Soha Araji and Theresa A. Grammer and Ross Gertzen and Stephen D. Anderson and Maja Mikulic-Petkovsek and Robert Veberic and My L. Phu and Anita Solar and Charles A. Leslie and Abhaya M. Dandekar and Matthew A. Escobar
Plant Physiology, ISSN 0032-0889, 3/2014, Volume 164, Issue 3, pp. 1191 - 1203
The enzyme polyphenol oxidase (PPO) catalyzes the oxidation of phenolic compounds into highly reactive quinones. Polymerization of PPO-derived quinones causes... 
Oxidases | Leaves | Enzymes | Pathogens | Phenotypes | Metabolites | Polyphenols | Plants | BIOCHEMISTRY AND METABOLISM | Lesions | Mimicry | JUGLANS-REGIA L | DEFENSE RESPONSES | PHENOLIC-COMPOUNDS | GENE-EXPRESSION | TYROSINE DECARBOXYLASE | TERMINAL TARGETING SEQUENCES | HYDROXYCINNAMIC ACID-AMIDES | DIFFERENTIAL EXPRESSION ANALYSIS | DISEASE RESISTANCE | TRYPTOPHAN DECARBOXYLASE | PLANT SCIENCES | Metabolomics | Gene Silencing - drug effects | RNA, Messenger - metabolism | Propanols - metabolism | Juglans - drug effects | Tyramine - chemistry | Plant Extracts - metabolism | Secondary Metabolism - drug effects | Plants, Genetically Modified | Cinnamates - metabolism | Plant Leaves - drug effects | Plant Proteins - metabolism | Cell Death - drug effects | Tyramine - metabolism | Tyramine - pharmacology | Secondary Metabolism - genetics | Juglans - cytology | RNA, Messenger - genetics | Plant Leaves - cytology | Juglans - enzymology | Plant Proteins - genetics | Gene Expression Regulation, Plant - drug effects | Phenotype | Substrate Specificity - drug effects | Plant Leaves - metabolism | Catechol Oxidase - metabolism | Kinetics | Juglans - genetics | Cell death | Quinone | Physiological aspects | Polymerization | Biochemistry | Genetic engineering
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3. Full Text Aurone synthase is a catechol oxidase with hydroxylase activity and provides insights into the mechanism of plant polyphenol oxidases
by Christian Molitor and Stephan Gerhard Mauracher and Annette Rompel
Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, 3/2016, Volume 113, Issue 13, pp. E1806 - E1815
Tyrosinases and catechol oxidases belong to the family of polyphenol oxidases (PPOs). Tyrosinases catalyze the -hydroxylation and oxidation of phenolic... 
Catechol oxidase | Type III copper protein mechanism | Tyrosinase | Crystal structure | CRYSTALLIZATION | type III copper protein | BINDING MODES | catechol oxidase | CRYSTAL-STRUCTURE | MULTIDISCIPLINARY SCIENCES | tyrosinase | HEXATUNGSTOTELLURATE(VI) | RAY CRYSTALLOGRAPHIC ANALYSIS | LATENT ISOFORM PPO4 | crystal structure | mechanism | PARTIAL-PURIFICATION | VITIS-VINIFERA | PROPHENOLOXIDASE PROVIDES | Amino Acid Sequence | Catalytic Domain | Models, Molecular | Molecular Sequence Data | Substrate Specificity | Coreopsis - enzymology | Molecular Dynamics Simulation | Catechol Oxidase - chemistry | Chalcones - metabolism | Plant Proteins - chemistry | Catechol Oxidase - metabolism | Copper - metabolism | Protein Conformation | Plant Proteins - metabolism | Tyramine - metabolism | Binding Sites | Benzofurans - metabolism | Biological Sciences | PNAS Plus
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4. Full Text Characterization of polyphenol oxidase activity in Ataulfo mango
by Cheema, Summervir and Sommerhalter, Monika
Food Chemistry, ISSN 0308-8146, 03/2015, Volume 171, pp. 382 - 387
Crude extracts of Ataulfo exhibited polyphenol oxidase (PPO) activity with pyrogallol, 3-methylcatechol, catechol, gallic acid, and protocatechuic acid. The... 
Enzyme activity | Enzyme | Polyphenol oxidase | Ataulfo mango | MANGIFERA-INDICA-L | CV ATAULFO | NUTRITION & DIETETICS | FRUIT | ANTIOXIDANT | FOOD SCIENCE & TECHNOLOGY | CHEMISTRY, APPLIED | Catechol Oxidase - antagonists & inhibitors | Molecular Weight | Enzyme Inhibitors - metabolism | Glutathione - metabolism | Electrophoresis, Polyacrylamide Gel | Ascorbic Acid - metabolism | Mangifera - enzymology | Plant Extracts - metabolism | Pyrones - chemistry | Sodium Dodecyl Sulfate - chemistry | Enzyme Inhibitors - chemistry | Catechol Oxidase - metabolism | Ascorbic Acid - chemistry | Protein Binding | Glutathione - chemistry | Kinetics | Pyrones - metabolism | Sodium Dodecyl Sulfate - metabolism | Oxidases
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5. Full Text Free phenolics and polyphenol oxidase (PPO): The factors affecting post-cut browning in eggplant (Solanum melongena)
by Mishra, Bibhuti Bhusan and Gautam, Satyendra and Sharma, Arun
Food Chemistry, ISSN 0308-8146, 08/2013, Volume 139, Issue 1-4, pp. 105 - 114
► The eggplant cultivars differed in PPO activity, phenolic content and browning. ► In eggplant browning was found to depend on soluble phenolics and PPO... 
Browning index | Phenolics | Polyphenol oxidase | Polymorphism | STORAGE | PROTEIN | ACID | FOOD SCIENCE & TECHNOLOGY | L | NUTRITION & DIETETICS | FRUIT | GENE | PURIFICATION | MULTIGENE FAMILY | CHEMISTRY, APPLIED | EXPRESSION | Amino Acid Sequence | Fruit - chemistry | Molecular Sequence Data | Solanum melongena - growth & development | Solanum melongena - enzymology | Fruit - enzymology | Plant Proteins - analysis | Phenols - metabolism | Catechol Oxidase - analysis | Fruit - growth & development | Plant Proteins - genetics | Solanum melongena - metabolism | Phenols - analysis | Sequence Alignment | Catechol Oxidase - metabolism | Catechol Oxidase - genetics | Plant Proteins - metabolism | Fruit - metabolism | Solanum melongena - genetics | Oxidases | Phenols
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6. Full Text Characterization of polyphenol oxidase from blueberry (Vaccinium corymbosum L.)
by Siddiq, M and Dolan, K.D
Food Chemistry, ISSN 0308-8146, 03/2017, Volume 218, pp. 216 - 220
Polyphenol oxidase (PPO) was extracted and characterized from high-bush blueberries. PPO showed an optimum activity at pH 6.1–6.3 and 35 °C, with the enzyme... 
pH and temperature optima | Kinetics properties | Inhibition | Blueberry | Polyphenol oxidase | FRUITS | ANTHOCYANIN DEGRADATION | FOOD SCIENCE & TECHNOLOGY | PHENOLICS | PHYSICOCHEMICAL PROPERTIES | INACTIVATION | PEROXIDASE | NUTRITION & DIETETICS | PURIFICATION | CHEMISTRY, APPLIED | Temperature | Catechol Oxidase - drug effects | Color | Substrate Specificity | Antioxidants - pharmacology | Sulfites - pharmacology | Blueberry Plants - growth & development | Ascorbic Acid - pharmacology | Catechol Oxidase - metabolism | Cysteine - pharmacology | Blueberry Plants - enzymology | Bronchoconstrictor Agents - pharmacology | Kinetics | Catechols - metabolism | Hydrogen-Ion Concentration | Oxidases | Chemical inhibitors | Benzoic acid | Sulfites | Cysteine | Catechin | Index Medicus
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7. Full Text The prophenoloxidase-activating system in invertebrates
by Cerenius, Lage and Söderhäll, Kenneth and Teknisk-naturvetenskapliga vetenskapsområdet and Biologiska sektionen and Jämförande fysiologi and Uppsala universitet and Institutionen för fysiologi och utvecklingsbiologi
Immunological Reviews, ISSN 0105-2896, 04/2004, Volume 198, Issue 1, pp. 116 - 126
A major innate defense system in invertebrates is the melanization of pathogens and damaged tissues. This important process is controlled by the enzyme... 
FRESH-WATER CRAYFISH | MOSQUITO ARMIGERES-SUBALBATUS | IN-VITRO ACTIVATION | HOLOTRICHIA-DIOMPHALIA LARVAE | PRO-PHENOL-OXIDASE | PATTERN-RECOGNITION PROTEIN | MOLECULAR-CLONING | SERINE PROTEINASE HOMOLOG | IMMUNOLOGY | VECTOR ANOPHELES-GAMBIAE | MASQUERADE-LIKE PROTEIN | Catechol Oxidase - immunology | Enzyme Precursors - metabolism | Animals | Invertebrates - enzymology | Catechol Oxidase - metabolism | Enzyme Precursors - immunology | Hemocyanins - metabolism | Serine Endopeptidases - metabolism | Enzyme Activation | Arthropods - enzymology | Immunity, Innate | Invertebrates/enzymology | Hemocyanin/metabolism | Arthropods/enzymology | Enzyme Precursors/immunology/metabolism | Catechol Oxidase/immunology/metabolism | Serine Endopeptidases/metabolism | Immunity; Natural
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8. Full Text Polyphenol oxidases in plants and fungi: Going places? A review
by Mayer, Alfred M
Phytochemistry, ISSN 0031-9422, 2006, Volume 67, Issue 21, pp. 2318 - 2331
PPO, constitutive or induced by jasmonate, in coded for by multiple genes. It oxidizes mono- or dihydroxy phenols to the corresponding quinones. The products... 
Pathogens | Function of enzyme | Inhibitors | Induction | Multiplicity | Distribution | Genes coding | Herbivores | Structure | Polyphenol oxidase | genes coding | multiplicity | inhibitors | DIFFERENTIAL EXPRESSION | CATECHOL OXIDASE | HYBRID POPLAR | BIOCHEMISTRY & MOLECULAR BIOLOGY | POTENT TYROSINASE INHIBITORS | distribution | function of enzyme | SOLANUM-TUBEROSUM | structure | PLANT SCIENCES | induction | pathogens | herbivores | REPRODUCTIVE DEVELOPMENT | AGARICUS-BISPORUS | polyphenol oxidase | MOLECULAR-CLONING | SENSITIVE TETRAMERIC PROTEASE | PARTIAL-PURIFICATION | Catechol Oxidase - metabolism | Fungi - enzymology | Plants - enzymology | Oxidases | Physiological aspects
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9. Full Text Synthetic models of the active site of catechol oxidase: Mechanistic studies
by Koval, Iryna A and Gamez, Patrick and Belle, Catherine and Belle, Catherine and Selmeczi, Katalin and Selmeczi, Katalin and Reedijk, Jan
Chemical Society Reviews, ISSN 0306-0012, 08/2006, Volume 35, Issue 9, pp. 814 - 840
The ability of copper proteins to process dioxygen at ambient conditions has inspired numerous research groups to study their structural, spectroscopic and... 
ZINC SUPEROXIDE-DISMUTASE | DICOPPER(II) COMPLEXES | O BOND-CLEAVAGE | RAY CRYSTAL-STRUCTURES | CATALYTIC-OXIDATION | SPECTROSCOPIC CHARACTERIZATION | DIOXYGEN COMPLEX | PYRIDINE 2,6-DICARBOXALDEHYDE | CHEMISTRY, MULTIDISCIPLINARY | DINUCLEAR COPPER(II) COMPLEXES | ELECTRONIC-STRUCTURE | Catechol Oxidase - chemistry | Oxidation-Reduction | Models, Biological | Catechol Oxidase - metabolism | Substrate Specificity | Structure-Activity Relationship | Binding Sites
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10. Full Text Platinum Nanoparticles: Efficient and Stable Catechol Oxidase Mimetics
by Liu, Yi and Wu, Haohao and Chong, Yu and Wamer, Wayne G and Xia, Qingsu and Cai, Lining and Nie, Zhihong and Fu, Peter P and Yin, Jun-Jie
ACS Applied Materials and Interfaces, ISSN 1944-8244, 09/2015, Volume 7, Issue 35, pp. 19709 - 19717
Although enzyme-like nanomaterials have been extensively investigated over the past decade, most research has focused on the peroxidaselike, catalase-like, or... 
enzyme mimetics | platinum nanoparticles | heterogeneous catalysts | catechol oxidase-like activity | oxidation of polyphenols | GOLD NANOPARTICLES | ACTIVE-SITE | CRYSTAL-STRUCTURE | MATERIALS SCIENCE, MULTIDISCIPLINARY | NANOSCIENCE & NANOTECHNOLOGY | DIFFERENT SHAPES | MUSHROOM TYROSINASE | HYDROGEN-PEROXIDE | SURFACE-PLASMON RESONANCE | SPIN-LABEL OXIMETRY | CATALYTIC-ACTIVITY | PEROXIDASE-LIKE ACTIVITY | Quercetin - chemistry | Quinones - analysis | Quinones - chemistry | Electron Spin Resonance Spectroscopy | Oxidation-Reduction | Metal Nanoparticles - chemistry | Caffeic Acids - chemistry | Chromatography, High Pressure Liquid | Platinum - chemistry | Monophenol Monooxygenase - metabolism | Biomimetic Materials - metabolism | Catechol Oxidase - chemistry | Mass Spectrometry | Polyphenols - analysis | Polyphenols - chemistry | Catechol Oxidase - metabolism | Oxygen - chemistry | Catalysis | Biomimetic Materials - chemistry | Catechin - chemistry | Monophenol Monooxygenase - chemistry | Index Medicus
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11. Full Text Protective and toxic roles of dopamine in Parkinson's disease
by Segura‐Aguilar, Juan and Paris, Irmgard and Muñoz, Patricia and Ferrari, Emanuele and Zecca, Luigi and Zucca, Fabio A
Journal of Neurochemistry, ISSN 0022-3042, 06/2014, Volume 129, Issue 6, pp. 898 - 915
The molecular mechanisms causing the loss of dopaminergic neurons containing neuromelanin in the substantia nigra and responsible for motor symptoms of... 
Parkinson′s disease | dopa‐mine | neuromelanin | neurodegeneration | aminochrome | 5,6‐indolequinone | dopamine | quinone | 5 6-indolequinone | dopa-mine o-quinone | BIOCHEMISTRY & MOLECULAR BIOLOGY | Parkinsons disease | RAT-BRAIN MITOCHONDRIA | CYSTEINE-SULFINIC ACID | ALPHA-SYNUCLEIN | DEPENDENT IRON TOXICITY | PROTEIN-DEGRADATION PATHWAYS | NEUROSCIENCES | CATECHOL-O-METHYLTRANSFERASE | DT-DIAPHORASE | MONOAMINE-OXIDASE-A | HUMAN SUBSTANTIA-NIGRA | 5,6-indolequinone | ONE-ELECTRON REDUCTION | Dopamine - therapeutic use | Glutathione - metabolism | Humans | Dopamine - biosynthesis | Melanins - physiology | Melanins - metabolism | Indolequinones - metabolism | Parkinson Disease - prevention & control | Animals | Dopamine - metabolism | Dopamine - toxicity | Monoamine Oxidase - metabolism | Parkinson Disease - etiology | Quinones - metabolism | Oxidases | Ubiquitin | Phenols | Mitochondrial DNA | Proteolysis | Quinone | Proteins | Oxidative stress | Mitochondria | Neurotoxicity | Dopamine | Neurodegeneration | Kinases | Index Medicus
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