Any feedback?
Please rate this page
(all_enzymes.php)
(0/150)

BRENDA support

1.7.2.1: nitrite reductase (NO-forming)

This is an abbreviated version!
For detailed information about nitrite reductase (NO-forming), go to the full flat file.

Word Map on EC 1.7.2.1

Reaction

nitric oxide
+
H2O
 +
ferricytochrome c
=
nitrite
 +
ferrocytochrome c
 + 2 H+

Synonyms

AcNIR, AfNiR, AniA, AxNiR, BRAO375_2740002, C551-O2 oxidoreductase, cd1 nitrite reductase, cd1NiR, cNOR, copper-containing dissimilatory nitrite reductase, copper-containing nitrite reductase, Cu-NIR, Cu-NirK, CuNIR, cytochrome c-551:O2, NO2- oxidoreductase, cytochrome cd, cytochrome cd1 nitrite reductase, cytochrome oxidase, dissimilatory nitrite reductase, dissimilatory nitrite reductase cytochrome cd1, EC 1.6.6.5, EC 1.7.99.3, EC 1.9.3.2, GK0767, GtNiR, HdNIR, hemoglobin, HydNIR, HYPDE_25578, KSU1_D0929, mARC1, mARC2, mitochondrial amidoxime reducing component, MRA2164, NiR, NiR-Pa, NirK, NirS, nitrite reductase, oxidase, Pseudomonas cytochrome, PaNiR, PNR, Pseudomonas cytochrome oxidase, PsNiR, reductase, nitrite (cytochrome), Rpic_4015, S58_68210

ECTree

     1 Oxidoreductases
         1.7 Acting on other nitrogenous compounds as donors
             1.7.2 With a cytochrome as acceptor
                1.7.2.1 nitrite reductase (NO-forming)

Specific Activity

Specific Activity on EC 1.7.2.1 - nitrite reductase (NO-forming)

Please wait a moment until all data is loaded. This message will disappear when all data is loaded.
SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
0.048
-
nitrite reduction
0.33
-
electron donor azurin
10.8
-
recombinant enzyme, without activation, enzyme has only type 1 copper centers
107
-
native recombinant enzyme, dithionite
117
-
after storage at -20°C for 25 h and thawing in a water bath at 20°C
123
mutant H254F, pH 7.1
130
-
electron donor benzyl viologen
167.7
-
recombinant enzyme, after activation with CuSO4
168
-
native recombinant enzyme, methyl viologen
2.1
-
nitrite reduction, elctron donor methyl viologen
22.7
-
enzyme is activated 2.5-4.5fold by freezing at -20°C for 6 h and subsequent thawing
240
wild-type, pH 7.1
3.32
-
reduction of N,N,N',N'-tetramethyl-4-phenyldiamine
303
pH 6.5, 35°C
40
-
if reduced nitrite is measured
45.2
-
native recombinant enzyme, azurin
80 - 90
-
if oxidized benzyl viologen is measured
82
mutant N90S, pH 7.1
960
-
in the presence of 2 M NaCl