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
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1.8.3.1
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molybdenum
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sulfur
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xanthine
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heme
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thiosulfate
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moco
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epr
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seizures
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molybdopterin
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molybdoenzymes
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sulfur-containing
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tungsten
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molybdenum-containing
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pterin
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s-sulfocysteine
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soxs
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sulfurtransferase
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ectopia
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low-ph
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pyranopterins
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lentis
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dithiolene
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amidoxime
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eseem
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hyperfine
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food industry
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agriculture
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high-ph
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analysis
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oxidase-deficient
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medicine
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xanthinuria
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marc
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molecular biology
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encephalomalacia
- 1.8.3.1
- molybdenum
- sulfur
- xanthine
- heme
- thiosulfate
- moco
- epr
- seizures
- molybdopterin
-
molybdoenzymes
-
sulfur-containing
- tungsten
-
molybdenum-containing
- pterin
- s-sulfocysteine
- soxs
- sulfurtransferase
-
ectopia
-
low-ph
-
pyranopterins
- lentis
-
dithiolene
-
amidoxime
-
eseem
-
hyperfine
- food industry
- agriculture
-
high-ph
- analysis
-
oxidase-deficient
- medicine
-
xanthinuria
-
marc
- molecular biology
- encephalomalacia
Reaction
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
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Inhibitors
Inhibitors on EC 1.8.3.1 - sulfite oxidase
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K2HPO4
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at 26 mM 50% inhibition if cytochrome c or ferricyanide is electron acceptor
K2SO4
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at 22 mM 50% inhibition if cytochrome c or ferricyanide is electron acceptor
KF
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at 72 mM 50% inhibition if cytochrome c or ferricyanide is electron acceptor
KNCS
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at 57 mM 50% inhibition if cytochrome c or ferricyanide is electron acceptor
N-cyclohexyl-N'-[2-(N-methylmorpholino)-ethyl]carbodiimide p-toluene sulfonate
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CMC
nitrite
nitrite inhibits sulfite-dependent cytochrome c reduction at sulfite concentrations ranging from 0.01 to 0.1 mM
potassium nitrate
50% inhibition at 1 mM, in Tris/HCl 20 mM, pH 8.5
sodium sulfite
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a high initial concentration of sodium sulfite decreases dramatically the enzyme expression
sodium tungstate
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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
KCl
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at 95 mM 50% inhibition if cytochrome c or ferricyanide is electron acceptor
KNO3
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at 78 mM 50% inhibition if cytochrome c or ferricyanide is electron acceptor
NaCl
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at 100 mM 50% inhibition if cytochrome c or ferricyanide is electron acceptor
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abrogates sulfite oxidase expression, whereby accumulating relatively less sulfate after SO2 application and showing enhanced induction of senescence and wounding associated transcripts, leaf necrosis and chlorophyll bleaching
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RNAi
abrogates sulfite oxidase expression, whereby accumulating relatively less sulfate after SO2 application and showing enhanced induction of senescence and wounding associated transcripts, leaf necrosis and chlorophyll bleaching
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tungstate
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treatment with sodium tungstate, leading to a catalytically inactive analogue by replacing molybdenum with tungsten in molybdenum cofactor because of its higher affinity constant. Determination of tolerance and impact of different concentrations of tungstate on the viability of HepG2 cells using a luciferase-based cytotoxicity assay, sodium tungstate is nontoxic up to 1000 ppm
additional information
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maintaining animals on high tungsten, low molybdenum diet, effectively induces SOX deficiency
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additional information
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maintaining the animal on low-molybdenum, high-tungsten diet, leads to an effective production of SOX deficiency
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additional information
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administration of high-tungsten/low molybdenum regimen leads to deficiency in SOX
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additional information
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is inactivated in the dark via a process in which a Ser residue (Ser543) in the hinge region connecting the Mo-PPT dimerization domain with the heme b5 domain is phosphorylated, followed by binding of the NIA inhibitor protein
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additional information
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inhibition at 400 mM salt concentrations; no inhibition by periodate or 80 mM sulfate
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