Hydrogen Peroxide-mediated Oxidation of Indole-3-acetic Acid by Tomato Peroxidase and Molecular Oxygen 1
AUTOR(ES)
Kokkinakis, Demetri M.
RESUMO
The oxidation of indole-3-acetic acid by anionic tomato peroxidase was found to be negligible unless reaction mixtures were supplemented with H2O2. The addition of H2O2 to reaction mixtures initiated a period of rapid indole-3-acetic acid oxidation and O2 uptake; this phase ended and O2 uptake fell to a low level when the H2O2 was exhausted. The stoichiometry of the reaction, which is highly dependent on enzyme concentration and pH, suggests that H2O2 initiates a sequence of reactions in which indole-3-acetic acid is oxidized.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=543058Documentos Relacionados
- Indole-3-Acetic Acid Oxidation and Crocin Bleaching by Horseradish Peroxidase 1
- Oxidation of Indole-3-Acetic Acid-Amino Acid Conjugates by Horseradish Peroxidase
- Transfer RNA-Peroxidase Interaction: INHIBITION OF INDOLE-3-ACETIC ACID OXIDATION
- Hydrogen Peroxide-Mediated Killing of Caenorhabditis elegans by Streptococcus pyogenes
- Hydrogen peroxide-mediated neuronal cell death induced by an endogenous neurotoxin, 3-hydroxykynurenine.
