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Literature summary for 1.8.3.3 extracted from

  • Ostrowski, M.C.; Kistler, W.S.
    Properties of a flavoprotein sulfhydryl oxidase from rat seminal vesicle secretion (1980), Biochemistry, 19, 2639-2645.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
additional information EDTA has no effect on oxidation reaction Rattus norvegicus
thiols at high concentrations above 20 mM Rattus norvegicus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.7
-
dithiothreitol
-
Rattus norvegicus
4.4
-
glutathione
-
Rattus norvegicus
9.1
-
L-cysteine
-
Rattus norvegicus
32
-
2-mercaptoethanol
-
Rattus norvegicus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
66000
-
gel filtration Rattus norvegicus

Organism

Organism UniProt Comment Textmining
Rattus norvegicus
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
seminal vesicle
-
Rattus norvegicus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2-mercaptoethanol + O2
-
Rattus norvegicus mercaptoethanol disulfide
-
?
dithiothreitol + O2
-
Rattus norvegicus ?
-
?
glutathione + O2
-
Rattus norvegicus glutathione disulfide + H2O2
-
?
L-cysteine + O2
-
Rattus norvegicus L-cystine
-
?
additional information not: D,L-homocysteine Rattus norvegicus ?
-
?
reduced RNase A + O2
-
Rattus norvegicus ?
-
?

Subunits

Subunits Comment Organism
monomer 1 * 66000, SDS-PAGE Rattus norvegicus

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
25
-
assay at Rattus norvegicus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
60
-
3.5 min, 50% loss of activity Rattus norvegicus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
substrate dithioerythritol Rattus norvegicus

pH Range

pH Minimum pH Maximum Comment Organism
5 10 minimal activity below pH 5.0, active at least up to pH 10.0 Rattus norvegicus

Cofactor

Cofactor Comment Organism Structure
FAD flavoprotein Rattus norvegicus
FAD 1 mol FAD per mol of enzyme Rattus norvegicus