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EC 2.8.1.3 Details

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EC number

2.8.1.3

Accepted name

thiosulfate—thiol sulfurtransferase

Reaction

thiosulfate + 2 glutathione = sulfite + glutathione disulfide + sulfide

Other name(s)

glutathione-dependent thiosulfate reductase, sulfane reductase, sulfane sulfurtransferase

Systematic name

thiosulfate:thiol sulfurtransferase

CAS registry number

111070-24-7

Comment

The primary product is glutathione hydrodisulfide, which reacts with glutathione to give glutathione disulfide and sulfide. L-Cysteine can also act as acceptor.

History

created 1982

EC Tree

1 Oxidoreductases

1.1 Acting on the CH-OH group of donors

1.2 Acting on the aldehyde or oxo group of donors

1.3 Acting on the CH-CH group of donors

1.4 Acting on the CH-NH₂ group of donors

1.5 Acting on the CH-NH group of donors

1.6 Acting on NADH or NADPH

1.7 Acting on other nitrogenous compounds as donors

1.8 Acting on a sulfur group of donors

1.9 Acting on a heme group of donors

1.10 Acting on diphenols and related substances as donors

1.11 Acting on a peroxide as acceptor

1.12 Acting on hydrogen as donor

1.12.1 With NAD⁺ or NADP⁺ as acceptor

1.12.2 With a cytochrome as acceptor

1.12.5 With a quinone or similar compound as acceptor

1.12.7 With an iron-sulfur protein as acceptor

1.12.98 With other, known, physiological acceptors

1.12.99 With unknown physiological acceptors

1.13 Acting on single donors with incorporation of molecular oxygen (oxygenases)

1.13.1. undefined

1.13.11 With incorporation of two atoms of oxygen

1.13.12 With incorporation of one atom of oxygen (internal monooxygenases or internal mixed-function oxidases)

1.13.99 Miscellaneous

1.14 Acting on paired donors, with incorporation or reduction of molecular oxygen

1.15 Acting on superoxide as acceptor

1.16 Oxidizing metal ions

1.17 Acting on CH or CH₂ groups

1.18 Acting on iron-sulfur proteins as donors

1.19 Acting on reduced flavodoxin as donor

1.20 Acting on phosphorus or arsenic in donors

1.21 Catalysing the reaction X-H + Y-H = X-Y

1.21.1 With NAD⁺ or NADP⁺ as acceptor

1.21.3 With oxygen as acceptor

1.21.4 With a disulfide as acceptor

1.21.98 With other, known, physiological acceptors

1.21.99 With unknown physiological acceptors

1.22 Acting on halogen in donors

1.23 Reducing C-O-C group as acceptor

1.97 Other oxidoreductases

1.98 Enzymes using H₂ as reductant (deleted subclass)

1.99 Other enzymes using O₂ as oxidant (deleted subclass)

2 Transferases

2.1 Transferring one-carbon groups

2.2 Transferring aldehyde or ketonic groups

2.3 Acyltransferases

2.4 Glycosyltransferases

2.5 Transferring alkyl or aryl groups, other than methyl groups

2.6 Transferring nitrogenous groups

2.7 Transferring phosphorus-containing groups

2.8 Transferring sulfur-containing groups

2.8.1 Sulfurtransferases

2.8.1.1 thiosulfate sulfurtransferase

2.8.1.2 3-mercaptopyruvate sulfurtransferase

2.8.1.3 thiosulfate—thiol sulfurtransferase

2.8.1.4 tRNA uracil 4-sulfurtransferase

2.8.1.5 thiosulfate—dithiol sulfurtransferase

2.8.1.6 biotin synthase

2.8.1.7 cysteine desulfurase

2.8.1.8 lipoyl synthase

2.8.1.9 molybdenum cofactor sulfurtransferase

2.8.1.10 thiazole synthase

2.8.1.11 molybdopterin synthase sulfurtransferase

2.8.1.12 molybdopterin synthase

2.8.1.13 tRNA-uridine 2-sulfurtransferase

2.8.1.14 tRNA-5-taurinomethyluridine 2-sulfurtransferase

2.8.1.15 tRNA-5-methyluridine⁵⁴ 2-sulfurtransferase

2.8.1.16 L-aspartate semialdehyde sulfurtransferase

2.8.2 Sulfotransferases

2.8.3 CoA-transferases

2.8.4 Transferring alkylthio groups

2.8.5 Thiosulfotransferases

2.9 Transferring selenium-containing groups

2.10 Transferring molybdenum- or tungsten-containing groups