Thiosulfate—dithiol_sulfurtransferase

Thiosulfate—dithiol sulfurtransferase

Thiosulfate—dithiol sulfurtransferase

Class of enzymes

In enzymology, a thiosulfate-dithiol sulfurtransferase (EC 2.8.1.5) is an enzyme that catalyzes the chemical reaction

thiosulfate + dithioerythritol sulfite + 4,5-cis-dihydroxy-1,2-dithiacyclohexane (i.e. oxidized dithioerythritol) + sulfide
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Thus, the two substrates of this enzyme are thiosulfate and dithioerythritol, whereas its 3 products are sulfite, 4,5-cis-dihydroxy-1,2-dithiacyclohexane, and sulfide.

This enzyme belongs to the family of transferases, specifically the sulfurtransferases, which transfer sulfur-containing groups. The systematic name of this enzyme class is thiosulfate:dithioerythritol sulfurtransferase. Other names in common use include thiosulfate reductase, and TSR. This enzyme participates in sulfur metabolism.

References

    • Schmidt A, Erdle I, Gamon B (1984). "Isolation and characterization of thiosulfate reductases from the green alga Chlorella fusca". Planta. 162: 243–249. doi:10.1007/BF00397446. PMID 24253096.


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