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1.8.99.B2: tetrathionate reductase

This is an abbreviated version!
For detailed information about tetrathionate reductase, go to the full flat file.

Word Map on EC 1.8.99.B2

Reaction

tetrathionate
+
a reduced electron acceptor
= 2 thiosulfate +
an oxidized electron acceptor

Synonyms

AFE_0042, C8J_0815, CjTsdA, di-heme TsdA, tetrathionate-forming thiosulfate dehydrogenase, tetrathionate-forming TSD, thiosulfate dehydrogenase, thiosulfate:quinone reductase, TQO, TSD, TsdA, ttrA, WsTsdA

ECTree

     1 Oxidoreductases
         1.8 Acting on a sulfur group of donors
             1.8.99 With unknown physiological acceptors
                1.8.99.B2 tetrathionate reductase

Metals Ions

Metals Ions on EC 1.8.99.B2 - tetrathionate reductase

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METALS and IONS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
Fe2+
-
in the enzyme bound hemes
MgCl2
MgSO4
-
slightly stimulating, at 200 mM
Na2SO4
150 mM Na-sulfate is required to generate maximum activity, 60% inhibition at 200 mM
sulfite
activates 1.6fold at 2 mM, higher concentration of sulfite ions results in inhibition of the enzyme, and almost complete inhibition at 10 mM sulfite
additional information
-
no stimulation of the enzyme by Na2SO4 at at 100 mM