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1.7.2.6: hydroxylamine dehydrogenase

This is an abbreviated version!
For detailed information about hydroxylamine dehydrogenase, go to the full flat file.

Word Map on EC 1.7.2.6

Reaction

hydroxylamine
+
H2O
+ 4 ferricytochrome c =
nitrite
+ 4 ferrocytochrome c + 5 H+

Synonyms

EC 1.7.3.4, HAO, haoA, HCR, HOA, hydroxylamine cytochrome c554 oxidoreductase, hydroxylamine oxidase, hydroxylamine oxidoreductase, hydroxylamine-cytochrome c reductase, hydroxylamine:oxygen oxidoreductase, mHAO, NeHAO, NirK, NoHAO

ECTree

     1 Oxidoreductases
         1.7 Acting on other nitrogenous compounds as donors
             1.7.2 With a cytochrome as acceptor
                1.7.2.6 hydroxylamine dehydrogenase

Turnover Number

Turnover Number on EC 1.7.2.6 - hydroxylamine dehydrogenase

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TURNOVER NUMBER [1/s]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
111
ferricyanide
pH 7.8, temperature not specified in the publication
3.4
ferricytochrome c-554
source of substrate Nitrosococcus oceani, pH 7.8, temperature not specified in the publication
-
0.039 - 383
hydroxylamine
158
nitrite
-
-
additional information
additional information
-
overview: effect of pH on rate of reduction of heme c553 of the enzyme by NH2OH, rate constant for reduction of hemes of the enzyme by dithionite at 2°C and 19°C and by NH2OH or NH2NH2 at 2°C
-