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1.8.2.1: sulfite dehydrogenase (cytochrome)

This is an abbreviated version!
For detailed information about sulfite dehydrogenase (cytochrome), go to the full flat file.

Word Map on EC 1.8.2.1

Reaction

sulfite
+
2 ferricytochrome c
+
H2O
=
sulfate
+ 2 ferrocytochrome c + 2 H+

Synonyms

CT1015, dehydrogenase, sulfite, MccACD, Mo-dependent sulfite dehydrogenase, More, multiheme cytochrome c sulfite reductase, SDH, SiR-FP18, SiRA, SO, SOR, SorA, SorAB, SorT, SoxF, sulfate oxidase, sulfite cytochrome c reductase, sulfite dehydrogenase, sulfite oxidase, sulfite oxidoreductase, sulfite reductase, sulfite-cytochrome c oxidoreductase, sulfite-oxidizing molybdenum enzyme, sulfite-oxido-reductase, sulfite: ferricytochrome-c oxidoreductase, sulphite:cytochrome c oxidoreductase

ECTree

     1 Oxidoreductases
         1.8 Acting on a sulfur group of donors
             1.8.2 With a cytochrome as acceptor
                1.8.2.1 sulfite dehydrogenase (cytochrome)

Inhibitors

Inhibitors on EC 1.8.2.1 - sulfite dehydrogenase (cytochrome)

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INHIBITOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
1,10-phenanthroline
2,2'-bipyridyl
arsenite
HgCl2
HPO42-
-
18% electrochemical activity at 100 mM inhibitor concentration, at 20 mM 50% inhibition
KCN
-
2 mM, complete inhibition after 10 min
monoiodoacetate
-
1 mM, 19% inhibition
NaAsO2
-
31% inhibition
NaF
-
0.01 mM, 17.5% inhibition
Ni2+
-
1 mM, 32% inhibition
NO3-
-
37% electrochemical activity at 100 mM inhibitor concentration, at 3 mM 50% inhibition
p-hydroxymercuribenzoate
phosphate
SO42-
sodium deoxycholate
-
1.0%, 80% inhibition
Triton X-100
-
1.0%, 15% inhibition
Zn2+
-
1 mM, 27% inhibition
additional information
-
CaCl2, MgSO4, ZnSO4, CuSO4, FeCl3, NiCl2 and Na2MoO4 inhibits the reaction by 70% at 0.267 mM, this effect is apparently due to the non-enzymatic oxidation of sulfite with air
-