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.
Reaction
+ 2 H2O + 3 oxidized ferredoxin = + 3 reduced ferredoxin + 7 H+
Synonyms
aNiR, assimilatory NiR, assimilatory nitrite reductase, CYME_CMG021C, CYME_CMJ117C, ferredoxin-nitrite reductase, ferredoxin:nitrite oxidoreductase, ferredoxin:nitrite reductase, Nii1, nii3, nii4, NiR, NiR1, NirA, nitrite reductase, NrfA, NrfH, reductase, ferredoxin-nitrite, SiRA, SirB
ECTree
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Inhibitors
Inhibitors on EC 1.7.7.1 - ferredoxin-nitrite reductase
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pyridoxal-5'-phosphate
75% inhibition of the enzyme with ferredoxin as electron donor after exposure to NaBH4, but no inhibition of the enzyme with methyl viologen as electron donor
specifically inhibits the ferredoxin binding ability of the enzyme by modifying lysine residues
N-acetylsuccinimide
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loss of enzymatic activity when reduced ferredoxin serves as electron donor, but very little effect with methyl viologen as electron donor, ferredoxin protects the enzyme
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incubation for 8 hours with 8-fold excess of NBS leads to 80% inhibition of the catalytic activity without effect on substrate binding or other enzyme activities, complex formation with ferredoxin protects the enzyme against inhibition
N-bromosuccinimide
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incubation for 8 hours with 8-fold excess of NBS leads to 80% inhibition of the catalytic activity without effect on substrate binding or other enzyme activities, complex formation with ferredoxin protects the enzyme against inhibition; modifies tryptophane and cysteine residues, incubation for 8 hours with 8-fold excess of NBS leads to 50% inhibition of the catalytic activity, incubation for 16 hours with 8-fold excess of NBS leads to 80% inhibition of the catalytic activity
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enzyme from higher plants and eukaryotic algae inhibited, cyanobacterial enzyme not
p-hydroxymercuribenzoate
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enzyme from higher plants and eukaryotic algae inhibited, cyanobacterial enzyme not
p-hydroxymercuribenzoate
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enzyme from higher plants and eukaryotic algae inhibited, cyanobacterial enzyme not
p-hydroxymercuribenzoate
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enzyme from higher plants and eukaryotic algae inhibited, cyanobacterial enzyme not
inhibits the ability of the enzyme to form a high-affinity complex with ferredoxin by modifying arginine residues
Phenylglyoxal
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loss of enzymatic activity when reduced ferredoxin serves as electron donor, but very little effect with methyl viologen as electron donor, ferredoxin protects the enzyme
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anti-glutamate synthase antibodies recognize nitrite reductase, but inhibit only ferredoxin-linked activity and not methyl viologen-linked activity
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additional information
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potassium chlorate and dithiothreitol are not effective inhibitors
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