Biological Nitrogen Removal Database

A manually curated data resource for microbial nitrogen removal


Detailed description of the enzyme

Enzyme name Hydrazine oxidoreductase
Synonyms Hydroxylamine oxidase;
HAO;
Hydroxylamine oxidoreductase;
Hydroxylamine-cytochrome c reductase;
Hydroxylamine cytochrome c554 oxidoreductase;
haoA
Gene cluster haoAB
Classification Oxidoreductases
Genes haoA, haoB
Pathway Nitrogen metabolism: Nitrification: Hydroxylamine oxidation
Substrate Hydroxylamine 
Ferricytochrome c
Water
Product Nitrite
Ferrocytochrome c
Hydron
Nitric oxide
Mechanism Link
Subunit
Gene
Protein name
Organism
Status
Accession Number (Genbank)
Accession Number (GenPept)
Accession Number (UniProt)
haoA
Hydroxylamine oxidoreductase
Nitrosomonas europaea
Reviewed
AL954747 
CAD85955.1
Q50925
Gene
Protein name
Organism
Status
Accession Number (Genbank)
Accession Number (GenPept)
Accession Number (UniProt)
haoB
Hydroxylamine oxidation protein HaoB
Comamonas sp. NLF-7-7
Unreviewed
CP042344 
QEA14115.1
A0A5B8S0F9
Reference

Authors

Title

PubMed ID

Full research link

van Kessel et al., 2015

Complete nitrification by a single microorganism

26610025

Link

Authors

Title

PubMed ID

Full research link

Kartal et al., 2012

Anammox—Growth Physiology, Cell Biology, and Metabolism

22633060

Link

Authors

Title

PubMed ID

Full research link

Karlsson et al., 2009

Identification of key proteins involved in the anammox reaction

19558586

Link

Authors

Title

PubMed ID

Full research link

Li et al., 2009

The bacterial diversity in an anaerobic ammonium-oxidizing (anammox) reactor community

19403257

Link

Authors

Title


PubMed ID

Full research link

Shimamura et al., 2008

Another multiheme protein, hydroxylamine oxidoreductase,
abundantly produced in an anammox bacterium besides the hydrazine-oxidizing enzyme

18397776

Link

Authors

Title

PubMed ID

Full research link

Quan et al., 2008

Diversity of ammonium-oxidizing bacteria in a granular sludge anaerobic ammonium-oxidizing (anammox) reactor

18479446

Link