1.7.7.1: ferredoxin-nitrite reductase

This is an abbreviated version!
For detailed information about ferredoxin-nitrite reductase, go to the full flat file.

Word Map on EC 1.7.7.1

Reaction

NH3
+ 2 H2O + 6 oxidized ferredoxin =
nitrite
+ 6 reduced ferredoxin + 7 H+

Synonyms

aNiR, assimilatory NiR, assimilatory nitrite reductase, CYME_CMG021C, CYME_CMJ117C, ferredoxin:nitrite oxidoreductase, ferredoxin:nitrite reductase, Nii1, nii3, nii4, NiR, nitrite reductase, NrfA, NrfH, reductase, ferredoxin-nitrite, SiRA, SirB

ECTree

     1 Oxidoreductases
         1.7 Acting on other nitrogenous compounds as donors
             1.7.7 With an iron-sulfur protein as acceptor
                1.7.7.1 ferredoxin-nitrite reductase

Substrates Products

Substrates Products on EC 1.7.7.1 - ferredoxin-nitrite reductase

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SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
hydroxylamine + reduced ferredoxin
ammonia + H2O + oxidized ferredoxin
show the reaction diagram
hydroxylamine can serve as an electron-accepting substrate for the enzyme and the product of hydroxylamine reduction is ammonia. Hydroxylamine, bound to the enzyme, can serve as a late intermediate during the reduction of nitrite to ammonia catalyzed by the enzyme
-
-
?
hydroxylamine + reduced ferredoxin
NH3 + H2O + oxidized ferredoxin
show the reaction diagram
-
-
-
-
?
nitrite + 6 reduced ferredoxin
ammonia + 2 H2O + 6 oxidized ferredoxin
show the reaction diagram
nitrite + 6 reduced ferredoxin + 7 H+
NH3 + 2 H2O + 6 oxidized ferredoxin
show the reaction diagram
nitrite + FADH2
NH3 + FAD + H2O
show the reaction diagram
nitrite + NADPH + H+
NH3 + NADP+ + H2O
show the reaction diagram
-
10% of maximum activity compared to reduced methyl viologen as electron donor
-
-
?
nitrite + reduced 2,6-dichlorophenolindophenol
NH3 + oxidized 2,6-dichlorophenolindophenol + H2O
show the reaction diagram
-
less than 35% of maximum activity compared to reduced methyl viologen as electron donor
-
-
?
nitrite + reduced ferredoxin
ammonia + oxidized ferredoxin
show the reaction diagram
nitrite + reduced ferredoxin
NH3 + H2O + oxidized ferredoxin
show the reaction diagram
nitrite + reduced methyl viologen
NH3 + H2O + oxidized methyl viologen
show the reaction diagram
nitrite + reduced phenazine methosulphate
NH3 + oxidized phenazine methosulphate + H2O
show the reaction diagram
-
less than 35% of maximum activity compared to reduced methyl viologen as electron donor
-
-
?
additional information
?
-