1.7.3.6: hydroxylamine oxidase (cytochrome)

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For detailed information about hydroxylamine oxidase (cytochrome), go to the full flat file.

Word Map on EC 1.7.3.6

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

ECTree

1 Oxidoreductases

1.7 Acting on other nitrogenous compounds as donors

1.7.3 With oxygen as acceptor

1.7.3.6 hydroxylamine oxidase (cytochrome)

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1	AA Sequence
1	CAS Registry Number
6	Cofactor
1	Crystallization (Commentary)
2	Expression
2	General Information
1	IC50 Value
6	Inhibitors
4	KM Value [mM]
4	Localization
3	Metals/Ions
2	Molecular Weight [Da]
2	Natural Substrates/ Products (Substrates)
10	Organism
1	Pathway
5	pH Optimum
3	pH Range
2	Purification (Commentary)
3	Reaction
4	Reaction Type
8	Reference
1	Specific Activity [micromol/min/mg]
13	Substrates and Products (Substrate)
4	Subunits
14	Synonyms
1	Systematic Name
1	Temperature Stability [°C]
1	Turnover Number [1/s]

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General Information on EC 1.7.3.6 - hydroxylamine oxidase (cytochrome)

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physiological function

Nitrosomonas europaea

Q82V11

enzyme HAO catalyzes the conversion of hydroxylamine to nitrite in nitrifying bacteria, that is key reaction in the nitrogen cycle. The enzyme HAO, protein NE1300, may play a structural role in the ternary complex with cytochrome c554, the physiological electron acceptor of HAO. Two of HAO's product electrons are subsequently transferred back to ammonia monooxygenase as substrate electrons, and the other two electrons contribute to the electrochemical gradient through a terminal oxidase in the cytoplasmic membrane

741887

additional information

2 entries