1.8.5.5: thiosulfate reductase (quinone)

This is an abbreviated version!
For detailed information about thiosulfate reductase (quinone), go to the full flat file.

Word Map on EC 1.8.5.5

Reaction

sulfite
+
hydrogen sulfide
+
a quinone
=
thiosulfate
+
a quinol

Synonyms

phsABC, PhsBCDEF

ECTree

     1 Oxidoreductases
         1.8 Acting on a sulfur group of donors
             1.8.5 With a quinone or similar compound as acceptor
                1.8.5.5 thiosulfate reductase (quinone)

Systematic Name

Systematic Name on EC 1.8.5.5 - thiosulfate reductase (quinone)

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SYSTEMATIC NAME
IUBMB Comments
sulfite,hydrogen sulfide:quinone oxidoreductase
The enzyme, characterized from the bacterium Salmonella enterica, is similar to EC 1.17.5.3, formate dehydrogenase-N. It contains a molybdopterin-guanine dinucleotide, five [4Fe-4S] clusters and two heme b groups. The reaction occurs in vivo in the direction of thiosulfate disproportionation, which is highly endergonic. It is driven by the proton motive force that occurs across the cytoplasmic membrane.