Sulfite Oxidase: Difference between revisions
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== Sulfite Oxidase Background Information== | == Sulfite Oxidase Background Information== | ||
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The molybdopertin cofactor is crucial to the enzyme because the oxidation of the sulfite occurs at the molybdenum center; the molybdenum center serves as the active site. When the molybdenum reacts with sulfite. One oxygen atom is transferred to sulfite, which produces sulfate and consequently reduces the molybdenum center by two electrons, thus resulting in Mo(IV). Intramolcular electron transfer from Mo(IV) to Fe(III) results in Fe(II) and Mo(V). One-electron photochemical reduction then moves Fe(II) to the exterior cytochrome resulting in Fe(III). This process occurs twice, and restores the enzyme to its original state. | The molybdopertin cofactor is crucial to the enzyme because the oxidation of the sulfite occurs at the molybdenum center; the molybdenum center serves as the active site. When the molybdenum reacts with sulfite. One oxygen atom is transferred to sulfite, which produces sulfate and consequently reduces the molybdenum center by two electrons, thus resulting in Mo(IV). Intramolcular electron transfer from Mo(IV) to Fe(III) results in Fe(II) and Mo(V). One-electron photochemical reduction then moves Fe(II) to the exterior cytochrome resulting in Fe(III). This process occurs twice, and restores the enzyme to its original state. | ||
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