1.8.2.2: thiosulfate dehydrogenase
This is an abbreviated version!
For detailed information about thiosulfate dehydrogenase, go to the full flat file.
Word Map on EC 1.8.2.2
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1.8.2.2
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sulfur
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sulfite
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thiobacillus
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rhodanese
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sulfur-oxidizing
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chemolithoautotrophic
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ferrooxidans
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vinosum
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allochromatium
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paracoccus
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acidithiobacillus
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thiooxidans
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tn5-mob
- 1.8.2.2
- sulfur
- sulfite
- thiobacillus
- rhodanese
-
sulfur-oxidizing
-
chemolithoautotrophic
- ferrooxidans
- vinosum
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allochromatium
-
paracoccus
-
acidithiobacillus
- thiooxidans
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tn5-mob
Reaction
2 thiosulfate + = + 2 ferrocytochrome c + 4 H+
Synonyms
AFE_0042, Alvin_0091, AvTsdA, C8J_0815, D0Y83_01395, di-heme TsdA, DIE28_04650, diheme cytochrome c TsdA, enzymes, thiosulfate-oxidizing, MpTsdBA, oxidase, thiosulfate, Tat pathway signal sequence domain protein, tetrathionate reductase, tetrathionate synthase, thiosulfate dehydrogenase, thiosulfate oxidase, thiosulfate-acceptor oxidoreductase, thiosulfate-oxidizing enzyme, TSD, TsdA
ECTree
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Inhibitors
Inhibitors on EC 1.8.2.2 - thiosulfate dehydrogenase
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dithionate
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18% inhibition at 1 mM, 15% inhibition at 0.1 mM and 0.01 mM
p-hydroxymercuribenzoate
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50% inhibition at 1 mM, 40% inhibition at 0.5 mM and 10% inhibition at 0.1 mM
SO42-
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33% inhibition at 1 mM, 15% inhibition at 0.1 mM, 7% inhibition at 0.01 mM
sulfite
2 mM, 1.6fold stimulation. Inhibitory at higher concentrations, almost complete inhibition at 10 mM
additional information
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reagents selective for arginine, cysteine and tryptophane have no effect on enzyme activity
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2,2'-bipyridyl
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50% inhibition at 1 mM, a 60 min incubation period is necessary to potentiate the inhibition
EDTA
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44% inhibition at 10 mM, a 15 min incubation period is necessary to potentiate the inhibition
HgCl2
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100% inhibition at 0.5 mM, 45% inhibition at 0.25 mM and 15% inhibition at 0.1 mM
N-ethylmaleimide
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100% inhibition at 1 mM, a 15 min incubation period is necessary to potentiate the inhibition
p-chloromercuribenzoate
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47% inhibition at 1 mM, 7% inhibition at 0.1 mM
SO32-
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75% inhibition at 1 mM, 48% inhibition at 0.1 mM 33% inhibition at 0.01 mM
SO32-
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inhibits at concentrations above 0.05 mM, the sulfite inhibition of thiosulfate oxidation by whole cells is very similar to the inhibition pattern of the enzyme
SO32-
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strongly inhibits, the inhibition is time-dependent and irreversible, 50% inhibition at 0.005 mM in 5 min
SO32-
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50% inhibition at 0.005 mM , time-dependent inhibition, irreversible