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EC 1.13.11.18 Details
EC number
1.13.11.18
Accepted name
persulfide dioxygenase
Reaction
S-sulfanylglutathione + O2 + H2O = glutathione + sulfite + 2 H+ (overall reaction);;(1a) S-sulfanylglutathione + O2 = S-sulfinatoglutathione + H+;;(1b) S-sulfinatoglutathione + H2O = glutathione + sulfite + H+ (spontaneous)
Other name(s)
sulfur oxygenase (incorrect), sulfur:oxygen oxidoreductase (incorrect), sulfur dioxygenase (incorrect)
Systematic name
S-sulfanylglutathione:oxygen oxidoreductase
CAS registry number
37256-58-9
Comment
An iron protein. Perthiols, formed spontaneously by interactions between thiols and elemental sulfur or sulfide, are the only acceptable substrate to the enzyme. The sulfite that is formed by the enzyme can be further converted into sulfate, thiosulfate or S-sulfoglutathione (GSSO3-) non-enzymically [2].
History
created 1972, modified 2015
EC Tree
1.13.11.7 created 1965 as EC 1.13.1.7, transferred 1972 to EC 1.13.11.7, deleted 1980
1.13.11.21 created 1972, deleted 2001