1.8.2.6: S-disulfanyl-L-cysteine oxidoreductase

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For detailed information about S-disulfanyl-L-cysteine oxidoreductase, go to the full flat file.

Word Map on EC 1.8.2.6

1.8.2.6

sulfur-oxidizing

pantotrophus

paracoccus

thiosulfate

chemotrophic

soxxa

sulfane

dissimilatory

chemolithoautotrophic

molybdopterin

flavocytochrome

allochromatium

thioalkalivibrio

heme-1

haloalkaliphilic

vinosum

six-electron

medicine

Reaction

+ 6 ferricytochrome c + 3 H2O =

[SoxY protein]-S-sulfosulfanyl-L-cysteine

+ 6 ferrocytochrome c + 6 H+

Synonyms

Daro_3133, Daro_3134, SoxCD, sulfite-dehydrogenase, sulfur dehydrogenase

ECTree

1 Oxidoreductases

1.8 Acting on a sulfur group of donors

1.8.2 With a cytochrome as acceptor

1.8.2.6 S-disulfanyl-L-cysteine oxidoreductase

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Systematic Name

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Systematic Name on EC 1.8.2.6 - S-disulfanyl-L-cysteine oxidoreductase

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[SoxY protein]-S-disulfanyl-L-cysteine:cytochrome-c oxidoreductase

The enzyme is part of the Sox enzyme system, which participates in a bacterial thiosulfate oxidation pathway that produces sulfate. The enzyme from the bacterium Paracoccus pantotrophus contains a molybdoprotein component and a diheme c-type cytochrome component. The enzyme successively oxidizes the outer sulfur atom in [SoxY protein]-S-disulfanyl-L-cysteine, using three water molecules and forming [SoxY protein]-S-sulfosulfanyl-L-cysteine. During the process, six electrons are transferred to the electron chain via cytochrome c.