Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary extracted from

  • Lu, W.P.; Kelly, D.P.
    Properties and role of sulphite:cytochrome c oxidoreductase purified from Thiobacillus versutus (A2) (1984), J. Gen. Microbiol., 130, 1683-1692.
No PubMed abstract available

Inhibitors

EC Number Inhibitors Comment Organism Structure
1.8.2.1 KCN 2 mM, complete inhibition after 10 min Paracoccus versutus
1.8.2.1 p-hydroxymercuribenzoate 1 mM, 75% inhibition after 15 min Paracoccus versutus
1.8.2.1 phosphate noncompetitive Paracoccus versutus

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.8.2.1 0.014
-
sulfite
-
Paracoccus versutus

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
1.8.2.1 44000
-
1 * 44000, SDS-PAGE Paracoccus versutus

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
1.8.2.1 sulfite + ferricytochrome c + H2O Paracoccus versutus the enzyme is involved in oxidation of thiosulfate sulfate + ferrocytochrome c + H+
-
?

Organism

EC Number Organism UniProt Comment Textmining
1.8.2.1 Paracoccus versutus
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
1.8.2.1
-
Paracoccus versutus

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
1.8.2.1 128
-
-
Paracoccus versutus

Storage Stability

EC Number Storage Stability Organism
1.8.2.1 -20°C, no loss of activity after several months Paracoccus versutus
1.8.2.1 4°C, 20% loss of activity after 1 month Paracoccus versutus

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.8.2.1 sulfite + ferricytochrome c + H2O
-
Paracoccus versutus sulfate + ferrocytochrome c + H+
-
?
1.8.2.1 sulfite + ferricytochrome c + H2O the enzyme is involved in oxidation of thiosulfate Paracoccus versutus sulfate + ferrocytochrome c + H+
-
?

Subunits

EC Number Subunits Comment Organism
1.8.2.1 monomer 1 * 44000, SDS-PAGE Paracoccus versutus

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
1.8.2.1 20
-
1 week, about 35% loss of activity Paracoccus versutus

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
1.8.2.1 8
-
-
Paracoccus versutus

pH Range

EC Number pH Minimum pH Maximum Comment Organism
1.8.2.1 7.3 9.5 90% of maximal activity at pH 7.3 and 9.5 Paracoccus versutus

Cofactor

EC Number Cofactor Comment Organism Structure
1.8.2.1 cytochrome c-551 intimately associated with the enzyme Paracoccus versutus

Ki Value [mM]

EC Number Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
1.8.2.1 12
-
phosphate
-
Paracoccus versutus