Kinetic studies of sulfite; cytochrome c oxidoreductase, thiosulfate-oxidizing enzyme, and adenostne-5′-phosphosulfate reductase from Thiobacillus thioparus

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Abstract
Kinetic studies were carried out on three enzymes purified from Thiobacillus thioparus: sulfite: cytochrome c oxidoreductase, thiosulfate-oxidizing enzyme, and adenosine-5′-phosphosulfate reductase. From the initial velocity and product inhibition studies a tentative kinetic mechanism was proposed for each enzyme reaction.