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Information on EC 1.13.11.55 - sulfur oxygenase/reductase

for references in articles please use BRENDA:EC1.13.11.55

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IUBMB Comments

This enzyme, which is found in thermophilic microorganisms, contains one mononuclear none-heme iron centre per subunit. Elemental sulfur is both the electron donor and one of the two known acceptors, the other being oxygen. Thiosulfate is also observed as a product, but is likely formed non-enzymically by a reaction between sulfite and sulfur . This enzyme differs from EC 1.13.11.18, sulfur dioxygenase and EC 1.12.98.4, sulfhydrogenase, in that both activities occur simultaneously.

The expected taxonomic range for this enzyme is: Archaea, Bacteria
Reaction Schemes

Synonyms
sulfur oxygenase reductase, tpsor, sor protein, sulfur oxygenase/reductase, sor-at, aasor, sulphur oxygenase reductase, more

REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
4 sulfur + 4 H2O + O2 = 2 hydrogen sulfide + 2 sulfite
show the reaction diagram
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PATHWAY SOURCE
PATHWAYS
MetaCyc
sulfur disproportionation II (aerobic)