Nitrate reductase

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Nitrate reductase enzymes are a group of enzymes which reduce nitrate to nitrite.

  • Nitrite reductase (2, 3, 4) catalyzes the last three steps in the reduction of nitrate to NH3. Contains one ferredoxin Fe2S2 center and one molecule of siroheme (partially reduced Fe porphyrin) and the electron donor for each step is ferredoxin.

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