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See searches and references containing L ASCORBATE-OXIDASE!L ASCORBATE-OXIDASE
L-ascorbate oxidase (EC 1.10.3.3) is an enzyme that catalyzes the chemical reaction 2 ascorbic acid O2 2 H2O O2 2 H2O 2 dehydroascorbic acid The
L-ascorbate_oxidase
Enzyme involved in the synthesis of vitamin C
L-Gulonolactone oxidase (EC 1.1.3.8) is an enzyme that produces vitamin C. It is expressed in most mammals, but is not produced in Haplorhini (a suborder
L-gulonolactone_oxidase
Essential nutrient found in citrus fruits and other foods
Vitamin C or ascorbate is a water-soluble vitamin found in citrus and other fruits, berries and vegetables. It is found as a form of ascorbic acid. It
Vitamin_C
Growth of an organism from a seed or spore
stress-related activities [CuZn-superoxide dismutase (SOD), Mn-SOD, L-ascorbate oxidase (AO), DNA polymerase Delta 1 (POLD)-1, Chaperon (CHAPE) and heat
Germination
Class of enzymes
oxidative stress. The synthesis of enzymes such as superoxide dismutase, L-ascorbate oxidase, and Delta 1 DNA polymerase is initiated in plants with the activation
Superoxide_dismutase
Salt content in the soil
production of plant stress enzymes such as superoxide dismutase, L-ascorbate oxidase, and Delta 1 DNA polymerase. Limiting this process can be achieved
Soil_salinity
Organic compound
uricase activity did not happen at the same time as the loss of L-gulonolactone oxidase (GLUO) activity (vitamin C synthesis), with approximately 30 million
Uric_acid
multicopper oxidase family and is therefore homologous to laccase (benzenediol:oxygen oxidoreductase or ligninolytic phenol oxidase), as well as L-ascorbate oxidase
Iron/lead_transporter
Class of enzymes
"Biosynthesis of ascorbate in yeast. Purification of L-galactono-1,4-lactone oxidase with properties different from mammalian L-gulonolactone oxidase". Eur. J
L-galactonolactone_oxidase
Mammalian protein found in Homo sapiens
norepinephrine. The three substrates of the enzyme are dopamine, vitamin C (ascorbate), and O2. The products are norepinephrine, dehydroascorbate, and H2O.
Dopamine_beta-hydroxylase
Protein family
ferricytochrome b5 → NAD+ + 2 ferrocytochrome b5 EC 1.10.2.1 L-ascorbate—cytochrome-b5 reductase L-ascorbate + ferricytochrome b5 → monodehydroascorbate + ferrocytochrome
Cytochrome_b5
1.10.3.3: L-ascorbate oxidase EC 1.10.3.4: o-aminophenol oxidase EC 1.10.3.5: 3-hydroxyanthranilate oxidase EC 1.10.3.6: rifamycin-B oxidase EC 1.10.3
List_of_EC_numbers_(EC_1)
Class of enzymes
Cu-binding domain similar to that of laccase and ascorbate oxidase. Laccase EC 1.10.3.2 (urishiol oxidase), a 3-domain enzyme found in fungi and plants,
Multicopper_oxidase
Essential elements required by organisms
ISBN 978-3-319-41340-2, retrieved 2025-04-19 Duggen S, Olgun N, Croot P, Hoffmann L, Dietze H, Delmelle P, Teschner C (2010-03-03). "The role of airborne volcanic
Micronutrient
Metabolic pathway
1016/S0005-2728(05)80197-5. PMID 1883834. Vanlerberghe GC, McIntosh L (June 1997). "ALTERNATIVE OXIDASE: From Gene to Function". Annual Review of Plant Physiology
Oxidative_phosphorylation
Peroxide-decomposing enzyme
used as a soluble, easily purified model for cytochrome c oxidase. Biology portal Ascorbate peroxidase Chloride peroxidase Cytochrome c peroxidase Haloperoxidase
Peroxidase
Consumption or injection of very large doses of vitamin C
mutated and ineffective form of the enzyme L-gulonolactone oxidase, the fourth and last step in the ascorbate-producing machinery. In the anthropoids lineage
Vitamin_C_megadosage
Disease resulting from a lack of vitamin C
Provided the diet contains sufficient vitamin C, the lack of working L-gulonolactone oxidase (GULO) enzyme has no significance. In modern Western societies
Scurvy
German biochemist and Nobel laureate (born 1937)
several copper-containing electron-transfer proteins, including that of ascorbate oxidase, and of other metallo-enzymes. These studies have thrown new light
Robert_Huber
emulsifier Calcium ascorbate – antioxidant (water-soluble) Calcium aluminosilicate (calcium aluminium silicate) – anti-caking agent Calcium ascorbate (Vitamin C)
List_of_food_additives
Central nervous system stimulant
Huang YN, Yang LY, Wang JY, Lai CC, Chiu CT, Wang JY (January 2017). "L-Ascorbate Protects Against Methamphetamine-Induced Neurotoxicity of Cortical Cells
Methamphetamine
converts L-proline amino acids incorporated in a peptide, typically collagen, to trans-3-hydroxyproline equivalents. The enzyme is an oxidase with the
Procollagen-proline 3-dioxygenase
Procollagen-proline_3-dioxygenase
Mammalian protein found in Homo sapiens
of the family of copper oxidases that includes mammalian ceruloplasmin, yeast fet3 and fet5, and bacterial ascorbate oxidase, among others. While hephaestin
Hephaestin
Chemical in plants
described; FNS I, a soluble enzyme that uses 2-oxogluturate, Fe2+, and ascorbate as cofactors and FNS II, a membrane bound, NADPH dependent cytochrome
Apigenin
Metabolism of xenobiotics
divided into three phases. In phase I, enzymes such as cytochrome P450 oxidases introduce reactive or polar groups into xenobiotics. These modified compounds
Xenobiotic_metabolism
Shelf fungus, worst disease of oilpalm
acid, which is a signal to downregulate its own expression of ascorbate oxidase and ascorbate peroxidase. AO and AP are reactive oxygen species scavengers
Ganoderma_orbiforme
Amino acid having an aromatic ring
use of various herbs and foods like chocolate which inhibit monoamine oxidase enzymes to varying degrees, and also some medications. Aromatic trace amines
Aromatic_amino_acid
Diagnostic tool used in urinalysis
ascorbic acid by oxidation. Some test strips include a test for urinary ascorbate. During routine screening, if a positive test for leukocytes, blood, protein
Urine_test_strip
Chemical compound
and BH2, respectively. Research shows that ascorbic acid (also known as ascorbate or vitamin C) can reduce BH3 radical into BH4, preventing the BH3 radical
Tetrahydrobiopterin
hemoglobin is facilitated by a monodehydroascorbate reductase-mediated ascorbate reduction of methemoglobin". Planta. 223 (5): 1033–40. doi:10.1007/s00425-005-0146-3
Phytoglobin-NO_cycle
Class of enzymes
(3S)-3-hydroxy-N6,N6,N6-trimethyl-L-lysine. This enzyme is an oxidase with the systematic name N6,N6,N6-trimethyl-L-lysine,2-oxoglutarate:oxygen oxidoreductase
Trimethyllysine_dioxygenase
American enzymologist
"Enzymic memory. Steady state kinetic and physical studies with ascorbate oxidase and aspartate aminotransferase". J. Biol. Chem. 254 (18): 9142–9147
John_Westley_(biochemist)
Energy-carrying molecule in living cells
phosphorylation, the key control point is the reaction catalyzed by cytochrome c oxidase, which is regulated by the availability of its substrate – the reduced
Adenosine_triphosphate
Most abundant structural protein in animals
prolyl 4-hydroxylase and lysyl hydroxylase. The reaction consumes one ascorbate molecule per hydroxylation. Collagen synthesis occurs both intracellularly
Collagen
Enzyme Commission numbers
7.1.1.3: ubiquinol oxidase (H+-transporting) EC 7.1.1.4: caldariellaquinol oxidase (H+-transporting) EC 7.1.1.5: menaquinol oxidase (H+-transporting) EC
List_of_EC_numbers_(EC_7)
apoptosis - apovitellenin-1 - archease - arenicin - ArgJ protein family - ascorbate 2,3-dioxygenase - assembled epitope - ataxia-telangiectasia - ATG or AUG
Index of molecular biology articles
Index_of_molecular_biology_articles
Class of enzymes
αKG-dependent dioxygenases are dependent on reducing agents (especially ascorbate) although the exact roles are not understood. αKG-dependent dioxygenases
Alpha-ketoglutarate-dependent hydroxylases
Alpha-ketoglutarate-dependent_hydroxylases
Process
subsequently oxidized to xanthine and then to uric acid via the enzyme xanthine oxidase. The other purine nucleoside, guanosine, is cleaved to form guanine. Guanine
Nucleic_acid_metabolism
Biological process to convert light into chemical energy
oxalate oxidase enzyme, and the produced CO2 can support the Calvin cycle reactions. Reactive hydrogen peroxide (H2O2), the byproduct of oxalate oxidase reaction
Photosynthesis
Species of flowering plant in the passion flower family
Properties, Microbiological Quality, Bioactive Compound Retention, and Ascorbate Oxidase Activity". Foods. 15 (7): 1187. doi:10.3390/foods15071187. ISSN 2304-8158
Passiflora_edulis
Substance designed to prevent decomposition
The most common antioxidant additives are ascorbic acid (vitamin C) and ascorbates. Thus, antioxidants are commonly added to oils, cheese, and chips. Other
Preservative
Process of fatty acid breakdown
first oxidation step in the peroxisome is catalyzed by the enzyme acyl-CoA oxidase. The β-ketothiolase used in peroxisomal β-oxidation has an altered substrate
Beta_oxidation
Set of chemical reactions in organisms
xenobiotic-metabolizing enzymes. In humans, these include cytochrome P450 oxidases, UDP-glucuronosyltransferases, and glutathione S-transferases. This system
Metabolism
Highly reactive molecules formed from diatomic oxygen (O2)
testis, have a large concentration of antioxidants such as vitamin C (ascorbate) and β-carotene and anti-oxidant enzymes. If too much damage is present
Reactive_oxygen_species
Codes for food additives
Deuchande, Teresa; Fundo, Joana F.; Leal, Tânia; Pintado, Manuela E.; Amaro, Ana L. (1 January 2024). "Painting the picture of food colouring agents: Near-ubiquitous
E_number
Type of organelle
antioxidative enzymes such as superoxide dismutase, the components of the ascorbate-glutathione cycle, and the NADP-dehydrogenases of the pentose-phosphate
Peroxisome
Naming system for food additives
A E U sodium ascorbate antioxidant (water-soluble) 302 A E U calcium ascorbate antioxidant (water-soluble) 303 A U potassium ascorbate antioxidant (water-soluble)
International Numbering System for Food Additives
International_Numbering_System_for_Food_Additives
Polycyclic organic compound having sterane as a core structure
3α-Hydroxysteroid dehydrogenase. Steroids are primarily oxidized by cytochrome P450 oxidase enzymes, such as CYP3A4. These reactions introduce oxygen into the steroid
Steroid
Protein-coding gene in humans
that are present on the cell surface or by dietary reductants such as ascorbate (Vitamin C). Once the Fe3+ has been reduced to Fe2+, the DMT1 transporter
Natural resistance-associated macrophage protein 2
Natural_resistance-associated_macrophage_protein_2
isomerization of citrate to isocitrate in the citric acid cycle, and cytochrome oxidase, the last enzyme in the respiratory electron transport chain of mitochondria
Nitric_oxide_dioxygenase
Set of biological pathways
glucogenic amino acids Amino acids Shikimate Aromatic amino acids & histidine Ascorbate (vitamin C) δ-ALA Bile pigments Hemes Cobalamins (vitamin B12) Various
Pyrimidine_metabolism
(superoxide dismutase) and hydrogen peroxide-scavenging enzymes (catalase, ascorbate peroxidase, and glutathione peroxidase). The antioxidant superoxide dismutase
Reactive oxygen species production in marine microalgae
Reactive_oxygen_species_production_in_marine_microalgae
Classification of membrane proteins including ion channels
Family 4.A.6 The PTS Mannose-Fructose-Sorbose (Man) Family 4.A.7 The PTS L-Ascorbate (L-Asc) Family 4.B.1 The Nicotinamide Ribonucleoside (NR) Uptake Permease
Transporter Classification Database
Transporter_Classification_Database
dehydrogenase (nad+) MeSH D08.811.682.047.150.700.437 – l-gulonolactone oxidase MeSH D08.811.682.047.150.700.475 – l-iditol 2-dehydrogenase MeSH D08.811.682.047.150
List_of_MeSH_codes_(D08)
L ASCORBATE-OXIDASE
L ASCORBATE-OXIDASE
L ASCORBATE-OXIDASE
L ASCORBATE-OXIDASE
L ASCORBATE-OXIDASE
L ASCORBATE-OXIDASE
L ASCORBATE-OXIDASE
L ASCORBATE-OXIDASE
L ASCORBATE-OXIDASE