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1.8.3.1: sulfite oxidase

This is an abbreviated version!
For detailed information about sulfite oxidase, go to the full flat file.

Word Map on EC 1.8.3.1

Reaction

sulfite
+
O2
 +
H2O
=
sulfate
 +
H2O2

Synonyms

At-SO, AtSOX, CG7280, HSO, NIA, oxidase, sulfite, PSO, Shopper, SO, SorT, SOX, sulfite oxidase, sulfite oxidase homologue, sulfite: acceptor oxidoreductase, sulfite:acceptor oxidoreductase, sulfite:oxygen oxidoreductase, sulphite oxidase cytochrome b9, SUOX, YedY, YedYZ, ZmSO

ECTree

     1 Oxidoreductases
         1.8 Acting on a sulfur group of donors
             1.8.3 With oxygen as acceptor
                1.8.3.1 sulfite oxidase

Inhibitors

Inhibitors on EC 1.8.3.1 - sulfite oxidase

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INHIBITOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride
-
EDC
2,6-dichloroindophenol
-
inhibition of O2 consumption
arsenate
-
100 mM, EPR spectra
arsenite
cytochrome c
-
inhibition of O2 consumption
diethylpyrocarbonate
-
modifies ten His per enzyme molecule
EDTA
-
20 mM, 50% inhibition
ferricyanide
heavy metal ions
-
imidazole
-
0.1 mM, complete inhibition
K2HPO4
-
at 26 mM 50% inhibition if cytochrome c or ferricyanide is electron acceptor
K2SO4
-
at 22 mM 50% inhibition if cytochrome c or ferricyanide is electron acceptor
KF
-
at 72 mM 50% inhibition if cytochrome c or ferricyanide is electron acceptor
KNCS
-
at 57 mM 50% inhibition if cytochrome c or ferricyanide is electron acceptor
mannitol
-
only with O2 as electron acceptor
methylene blue
N-bromosuccinimide
N-cyclohexyl-N'-[2-(N-methylmorpholino)-ethyl]carbodiimide p-toluene sulfonate
-
CMC
N-ethyl-5-phenylisoxazolium-3'-sulfonate
-
Woodward's reagent K
Ni2+
-
stronger inhibition at pH 7.0 than at pH 3.0
NiCl2
-
0.1 mM, complete inhibition
nitrite
nitrite inhibits sulfite-dependent cytochrome c reduction at sulfite concentrations ranging from 0.01 to 0.1 mM
p-chloromercuribenzoate
phosphate
-
100 mM, EPR spectra
potassium nitrate
50% inhibition at 1 mM, in Tris/HCl 20 mM, pH 8.5
potassium phosphate
RNAi
-
Sodium arsenate
-
7 mM, 50% inhibition
Sodium sulfate
-
20 mM, 50% inhibition
sodium sulfite
-
a high initial concentration of sodium sulfite decreases dramatically the enzyme expression
sodium tungstate
-
at pH 7.5 sodium tungstate inhibits enzyme activity as follows: 1 mM 8% inhibition, 3 mM 36% inhibition, 10 mM 49% inhibition, 50 mM complete inhibition, stronger inhibition at pH 7.0 than at pH 3.0
sulfite
-
competitive inhibitor of nitric oxide production above 0.037 mM
Tris-acetate
-
80 mM, pH 8.0, 50% inhibition
Tris-HCl
-
100 mM, pH 8.0, 50% inhibition
Tris/HCl
50% inhibition at 90 mM, pH 8.5
tungstate
additional information
-