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Information on EC 1.7.2.2 - nitrite reductase (cytochrome; ammonia-forming)

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EC Tree
IUBMB Comments
Found as a multiheme cytochrome in many bacteria. The enzyme from Escherichia coli contains five hemes c and requires Ca2+. It also reduces nitric oxide and hydroxylamine to ammonia, and sulfite to sulfide.
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Word Map
The enzyme appears in viruses and cellular organisms
Reaction Schemes
Synonyms
cytochrome c-552, cytochrome c nitrite reductase, ccnir, tvnir, nrfha, octahaem cytochrome c nitrite reductase, hexaheme c-type cytochrome, cytochrome c nitrite reductase complex, nrfa2nrfh complex, ammonia-forming cytochrome c nitrite reductase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
NH3 + 2 H2O + 6 ferricytochrome c = nitrite + 6 ferrocytochrome c + 7 H+
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