1.7.7.1 additional information anti-glutamate synthase antibodies recognize nitrite reductase, but inhibit only ferredoxin-linked activity and not methyl viologen-linked activity 2 1.7.7.1 additional information potassium chlorate and dithiothreitol are not effective inhibitors 2 1.7.7.1 EDTA - 21 1.7.7.1 p-chloromercuribenzoate - 43 1.7.7.1 p-chloromercuribenzoate nitrite partially protects the inhibition 43 1.7.7.1 p-chloromercuribenzoate complete inhibition at 0.1 mM 43 1.7.7.1 p-chloromercuribenzoate not 43 1.7.7.1 N-ethylmaleimide 47% inhibition at 1 mM 49 1.7.7.1 hydroxylamine 34% inhibition at 10 mM 85 1.7.7.1 sulfite - 92 1.7.7.1 p-hydroxymercuribenzoate enzyme from higher plants and eukaryotic algae inhibited, cyanobacterial enzyme not 98 1.7.7.1 p-hydroxymercuribenzoate - 98 1.7.7.1 cyanide - 118 1.7.7.1 cyanide 92% inhibition at 0.1 mM 118 1.7.7.1 cyanide almost complete inhibition from 0.02 mM to 0.2 mM 118 1.7.7.1 cyanide competitive inhibition with respect to nitrite 118 1.7.7.1 cyanide 90% inhibition at 1 mM 118 1.7.7.1 cyanide 1 mM 118 1.7.7.1 CO enzyme from higher plants and algae 176 1.7.7.1 CO - 176 1.7.7.1 CO forms a complex with the reduced enzyme 176 1.7.7.1 N-bromosuccinimide 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 208 1.7.7.1 N-bromosuccinimide 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 208 1.7.7.1 azide - 230 1.7.7.1 NaN3 slight 238 1.7.7.1 o-phenanthroline 15% inhibition at 5 mM 239 1.7.7.1 Phenylglyoxal inhibits the ability of the enzyme to form a high-affinity complex with ferredoxin by modifying arginine residues 301 1.7.7.1 Phenylglyoxal 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 301 1.7.7.1 8-hydroxyquinoline 7% inhibition at 5 mM 321 1.7.7.1 (NH4)2SO4 slightly inhibitory 399 1.7.7.1 SO32- 24% inhibition at 10 mM 902 1.7.7.1 4-hydroxymercuribenzoate - 970 1.7.7.1 Mersalyl - 1982 1.7.7.1 Mersalyl reversible by glutathione 1982 1.7.7.1 bathophenanthroline slight 2722 1.7.7.1 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 4558 1.7.7.1 N-acetylsuccinimide specifically inhibits the ferredoxin binding ability of the enzyme by modifying lysine residues 21867 1.7.7.1 N-acetylsuccinimide 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 21867 1.7.7.1 Phenyl mercury acetate - 94716