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ENZYME entry: EC

Accepted Name
bacterial sulfide:quinone reductase.
Alternative Name(s)
sulfide:quinone reductase.
Reaction catalysed
n a quinone + n H(+) + n hydrogen sulfide <=> n a quinol + n sulfur
  • Ubiquinone, plastoquinone or menaquinone can act as acceptor in different species.
  • This enzyme catalyzes the formation of sulfur globules.
  • It repeats the catalytic cycle without releasing the product, producing a polysulfide of up to 10 sulfur atoms.
  • The reaction stops when the maximum length of the polysulfide that can be accommodated in the sulfide oxidation pocket is achieved.
  • The enzyme also plays an important role in anoxygenic bacterial photosynthesis. cf. EC
PRIAM enzyme-specific profiles1.8.5.4
KEGG Ligand Database for Enzyme Nomenclature1.8.5.4
IUBMB Enzyme Nomenclature1.8.5.4
MEDLINEFind literature relating to
Rhea expert-curated reactions1.8.5.4

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