Glutathione and glutathione metabolizing enzymes in yeasts |
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Authors: | Enrico Casalone Carmine Di Ilio Giorgio Federici Mario Polsinelli |
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Institution: | (1) Dipartimento Biologia Animale e Genetica, Università di Firenze, Via Romana 17, 50125 Firenze, Italy;(2) Istituto di Scienze Biochimiche, Università di Chieti, Italy;(3) Dipartimento di Biologia, Università di Roma, Tor Vergata, Italy |
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Abstract: | Total glutathione content, glutathione peroxidase, glutathione transferase and glutathione reductase activities have been measured in 12 species of yeasts. All the strains tested contained glutathione, though in different amounts, as well as the above mentioned enzymes. To discriminate between the selenium-dependent and the selenium-independent form, glutathione peroxidase activity has been measured with both H2O2 and cumene hydroperoxide. Rhodotorula glutinis appeared to be the only strain in which the selenium-dependent form was not found, but this yeast exhibited the highest level of selenium-independent glutathione peroxidase activity as compared to the other strains. |
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Keywords: | glutathione glutathione transferase glutathione peroxidase glutathione reductase (yeast) |
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