1.8.2.1: sulfite dehydrogenase (cytochrome)
This is an abbreviated version!
For detailed information about sulfite dehydrogenase (cytochrome), go to the full flat file.
Word Map on EC 1.8.2.1
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1.8.2.1
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starkeya
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novella
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thiosulfate
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paracoccus
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pantotrophus
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molybdoenzyme
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sulfoacetaldehyde
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desulfonation
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chemolithotrophic
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food industry
- 1.8.2.1
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starkeya
- novella
- thiosulfate
-
paracoccus
- pantotrophus
-
molybdoenzyme
- sulfoacetaldehyde
-
desulfonation
-
chemolithotrophic
- food industry
Reaction
+ + = + 2 ferrocytochrome c + 2 H+
Synonyms
CT1015, dehydrogenase, sulfite, MccACD, Mo-dependent sulfite dehydrogenase, More, multiheme cytochrome c sulfite reductase, SDH, SiR-FP18, SiRA, SO, SOR, SorA, SorAB, SorT, SoxF, sulfate oxidase, sulfite cytochrome c reductase, sulfite dehydrogenase, sulfite oxidase, sulfite oxidoreductase, sulfite reductase, sulfite-cytochrome c oxidoreductase, sulfite-oxidizing molybdenum enzyme, sulfite-oxido-reductase, sulfite: ferricytochrome-c oxidoreductase, sulphite:cytochrome c oxidoreductase
ECTree
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Substrates Products
Substrates Products on EC 1.8.2.1 - sulfite dehydrogenase (cytochrome)
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REACTION DIAGRAM
SO32- + H2O + 2 oxidized cytochrome c
SO42- + 2 reduced cytochrome c + 2 H+
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sulfite + 2 ferrocene methanol + H2O
sulfate + 2 reduced ferrocene methanol + 2 H+
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sulfate + 2 ferrocytochrome c + 2 H+
in the absence of the core thiosulfate oxidizing multi-enzyme system, enzyme catalyzes sulfide-dependent reduction of Chlorobaculum tepidum cytochrome c-554
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?
sulfite + 2 ferricytochrome c + H2O
sulfate + 2 ferrocytochrome c + 2 H+
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?
sulfite + 2 ferricytochrome c + H2O
sulfate + 2 ferrocytochrome c + 2 H+
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?
sulfite + 2 ferricytochrome c + H2O
sulfate + 2 ferrocytochrome c + 2 H+
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?
sulfite + 2 ferricytochrome c + H2O
sulfate + 2 ferrocytochrome c + 2 H+
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?
sulfate + ferrocyanide + H+
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sulfite + ferricyanide + H2O
sulfate + ferrocyanide + H+
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?
sulfite + ferricyanide + H2O
sulfate + ferrocyanide + H+
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?
sulfite + ferricyanide + H2O
sulfate + ferrocyanide + H+
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enzyme is involved in thiosulfate oxidation
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?
sulfite + ferricyanide + H2O
sulfate + ferrocyanide + H+
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3-5% of the activity with ferricytochrome
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sulfate + ferrocytochrome c
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sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c
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SDH exhibits a high affinity for both sulfite and the electron acceptor cytochrome c and the reaction follows a ping-pong mechanism
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sulfate + ferrocytochrome c + H+
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horse heart cytochrome or yeast cytochrome
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sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c + H+
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?
sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c + H+
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sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c + H+
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sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c + H+
ferricytochrome c is the physiological electron acceptor
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sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c + H+
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ferricytochrome c is the physiological electron acceptor
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sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c + H+
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sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c + H+
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enzyme is essential for growth with thiosulfate, essential role in lithotrophic sulfur oxidation
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sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c + H+
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?
sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c + H+
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?
sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c + H+
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?
sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c + H+
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the enzyme is involved in oxidation of thiosulfate
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?
sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c + H+
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the enzyme is a component of a thiosulfate-oxidizing system
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?
sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c + H+
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?
sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c + H+
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?
sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c + H+
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specific for sulfite
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sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c + H+
cytochrome c from horse heart
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sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c + H+
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oxidative phosphorylation is coupled to sulfite oxidation with a low P/O ratio
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sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c + H+
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?
sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c + H+
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?
sulfite + ferricytochrome c + H2O
sulfate + ferrocytochrome c + H+
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horse heart cytochrome or yeast cytochrome
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?
sulfate + ferrocytochrome c550 + H+
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sulfite + ferricytochrome c550 + H2O
sulfate + ferrocytochrome c550 + H+
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r
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present in taurine-grown cells and effectively absent in acetate grown cells, can be anticipated in both sulfite-generating pathways
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additional information
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favorable protein-protein interactions between SorT and c-type cytochrome SorU, i.e. Smc04048, lead to productive electron transfer and catalytic activity. No activity with ferrous horse heart cytochrome c, and no activity with O2 as an sulfite oxidase
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