Thiosulfate dehydrogenase
Definition:
EC Tree > 1 Oxidoreductases > 1.8 Acting on a sulfur group of donors > 1.8.2 With a cytochrome as acceptor > 1.8.2.2 thiosulfate dehydrogenase
Thiosulfate dehydrogenase is usually a diheme c-type cytochrome that reversibly forms a sulfur-sulfur bond between the sulfane atoms of two thiosulfate molecules, yielding tetrathionate and releasing two electrons to ferricytochrome c; in organisms such as Thiomonas intermedia and Sideroxydans lithotrophicus a second diheme cytochrome TsdB serves as electron acceptor.
Thiosulfate dehydrogenase is usually a diheme c-type cytochrome that reversibly forms a sulfur-sulfur bond between the sulfane atoms of two thiosulfate molecules, yielding tetrathionate and releasing two electrons to ferricytochrome c; in organisms such as Thiomonas intermedia and Sideroxydans lithotrophicus a second diheme cytochrome TsdB serves as electron acceptor.
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