title: Effect of indole-3-acetic acid on the kinetics of horseradish peroxidase catalyzed scopoletin oxidation.
abstract: The kinetics of horseradish peroxidase catalyzed of scopoletin oxidation were observed to be sigmoidal. The apparent KmS for scopoletin is 0.9 mM. Inhibition of scopoletin oxidation by indole-3-acetic acid (IAA) appears to be non competitive. Non competitive inhibition by IAA suggests a more significant role of the peroxidase protein matrix in regulating the activity of the heme moiety.
mesh_terms: D006735:Horseradish Peroxidase / Q000378:metabolism*; D007210:Indoleacetic Acids / Q000494:pharmacology*; D007700:Kinetics; D010544:Peroxidases / Q000378:metabolism*; D012603:Scopoletin / Q000378:metabolism*; D014468:Umbelliferones / Q000378:metabolism*
chemical_list: D007210:Indoleacetic Acids; D014468:Umbelliferones; D006735:Horseradish Peroxidase; D010544:Peroxidases; D012603:Scopoletin