1.7.3.6: hydroxylamine oxidase (cytochrome)
This is an abbreviated version!
For detailed information about hydroxylamine oxidase (cytochrome), go to the full flat file.
Word Map on EC 1.7.3.6
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1.7.3.6
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nitrosomonas
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europaea
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ammonia-oxidizing
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nh2oh
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nitrify
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nitrification
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anammox
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multiheme
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c-hemes
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chemoautotrophic
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stuttgartiensis
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heme-like
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tetraheme
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kuenenia
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nitrosococcus
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brocadia
- 1.7.3.6
- nitrosomonas
- europaea
-
ammonia-oxidizing
- nh2oh
-
nitrify
-
nitrification
-
anammox
-
multiheme
-
c-hemes
-
chemoautotrophic
- stuttgartiensis
-
heme-like
-
tetraheme
- kuenenia
-
nitrosococcus
- brocadia
Reaction
+ = + 2 ferrocytochrome c + 2 H+
Synonyms
EC 1.7.3.4, HAO, hydroxylamine oxidase, hydroxylamine oxidoreductase, hydroxylamine-cytochrome c oxidoreductase, hydroxylamine-cytochrome c reductase, oxidase, hydroxylamine HAO, protein NE1300
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Systematic Name
Systematic Name on EC 1.7.3.6 - hydroxylamine oxidase (cytochrome)
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hydroxylamine:oxygen oxidoreductase
The enzyme from the heterotrophic nitrifying bacterium Paracoccus denitrificans contains three to five non-heme, non-iron-sulfur iron atoms and interacts with cytochrome c556 and pseudoazurin [2,3]. Under anaerobic conditions in vitro only nitrous oxide is formed [3]. Presumably nitroxyl is released and combines with a second nitroxyl to give nitrous oxide and water. When oxygen is present, nitrite is formed.