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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)

pH Range

pH Range on EC 1.7.2.1 - nitrite reductase (NO-forming)

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pH RANGE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
4.9 - 6.2
-
pH 4.9: about 55% of maximal ativity, pH 6.2: about 65% of maximal activity, reaction with 0.5 mM nitrite and pseudoazurin as electron donor
5.2 - 6.5
-
pH 5.2: about 60% of maximal activity, pH 6.5: about 55% of maximal activity, reaction with 5 mM nitrite and pseudoazurin as electron donor
7.5
3fold decrease in the rate of NO formation compared to pH 6.5
additional information