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Literature summary extracted from

  • Shibuya, A.; Horie, S.
    Studies on the composition of the mitochondrial sulfite oxidase system (1980), J. Biochem., 87, 1773-1784.
    View publication on PubMed

Activating Compound

EC Number Activating Compound Comment Organism Structure
1.8.3.1 cytochrome c at lower oxygen concentrations Mus musculus
1.8.3.1 cytochrome c at lower oxygen concentrations Rattus norvegicus

Inhibitors

EC Number Inhibitors Comment Organism Structure
1.8.3.1 CN- profound at low O2 concentration, not at high O2 concentration Mus musculus
1.8.3.1 CN- profound at low O2 concentration, not at high O2 concentration Rattus norvegicus

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.8.3.1 0.002
-
 cytochrome c
-
 Rattus norvegicus
1.8.3.1 0.015
-
 O2
-
 Mus musculus
1.8.3.1 0.015
-
 O2
-
 Rattus norvegicus
1.8.3.1 0.39
-
 sulfite
-
 Mus musculus

Organism

EC Number Organism UniProt Comment Textmining
1.8.3.1 Mus musculus
-
-
-
1.8.3.1 Rattus norvegicus
-
-
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.8.3.1 sulfite + cytochrome c
-
 Rattus norvegicus sulfate + reduced cytochrome c
-
 ?
1.8.3.1 sulfite + H2O + A A: electron acceptor, i.e. O2, cytochrome c, K3[Fe(CN)6], 2,6-dichloroindophenol, methylene blue, highly specific for sulfite as electron donor Mus musculus SO42- + AH2
-
 ?
1.8.3.1 sulfite + H2O + A A: electron acceptor, i.e. O2, cytochrome c, K3[Fe(CN)6], 2,6-dichloroindophenol, methylene blue, highly specific for sulfite as electron donor Rattus norvegicus SO42- + AH2
-
 ?
1.8.3.1 sulfite + O2 + H2O
-
 Mus musculus sulfate + H2O2
-
 r
1.8.3.1 sulfite + O2 + H2O
-
 Rattus norvegicus sulfate + H2O2
-
 ?

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
1.8.3.1 7.5
-
-
 Mus musculus
1.8.3.1 7.5
-
-
 Rattus norvegicus