1.13.11.27 4-hydroxyphenylpyruvate + O2 = homogentisate + CO2 addition of substrate and oxygen to the holoenzyme is formally random, holo-enzym in complex with substrate has a 3600-fold increase in oxygen reactivity 657978 1.13.11.27 4-hydroxyphenylpyruvate + O2 = homogentisate + CO2 dioxygen reactivity and the common decarboxylation half reaction, and the hydroxylation half reaction, mechanisms, detailed overview -, 741762 1.13.11.27 4-hydroxyphenylpyruvate + O2 = homogentisate + CO2 dioxygen reactivity and the common decarboxylation half reaction, and the hydroxylation half reaction, mechanisms, inhibitor-bound crystal structure, PDB ID 1CJX, analysis, detailed overview 741762 1.13.11.27 4-hydroxyphenylpyruvate + O2 = homogentisate + CO2 direct involvement of the arene oxide intermediate to the reaction mechanism 725432 1.13.11.27 4-hydroxyphenylpyruvate + O2 = homogentisate + CO2 enzyme form 3: ordered bi bi mechanism where 4-hydroxyphenylpyruvate is added prior to oxygen and CO2 released before homogentisate 395383 1.13.11.27 4-hydroxyphenylpyruvate + O2 = homogentisate + CO2 evidence against participation of a quinol as a free intermediate 395385 1.13.11.27 4-hydroxyphenylpyruvate + O2 = homogentisate + CO2 homogentisate - 1.13.11.27 4-hydroxyphenylpyruvate + O2 = homogentisate + CO2 in plants this enzyme activity is involved in two distinct metabolic processes, the biosynthesis of prenylquinones and the catabolism of tyrosine 395398 1.13.11.27 4-hydroxyphenylpyruvate + O2 = homogentisate + CO2 mechanism of oxygen binding and activation, structural relationship to other dioxygenases 658980 1.13.11.27 4-hydroxyphenylpyruvate + O2 = homogentisate + CO2 mono-iso-ordered bi-bi mechanism with binding of 4-hydroxyphenylpyruvate before O2 and release of CO2 before homogentisate. A Theorell-Chance mechanism can not be excluded -, 395373