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Literature summary for 1.8.2.1 extracted from

  • Nakamura, K.; Yoshikawa, H.; Okubo, S.; Kurosawa, H.; Amano, Y.
    Purification and properties of membrane-bound sulfite dehydrogenase from Thiobacillus thiooxidans JCM7814 (1995), Biosci. Biotechnol. Biochem., 59, 11-15.
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
Triton X-100 increases activity Acidithiobacillus thiooxidans

Inhibitors

Inhibitors Comment Organism Structure
arsenite 1 mM, complete inhibition Acidithiobacillus thiooxidans
HgCl2 1 mM, 91% inhibition Acidithiobacillus thiooxidans
monoiodoacetate 1 mM, 19% inhibition Acidithiobacillus thiooxidans
NEM 1 mM, 53% inhibition Acidithiobacillus thiooxidans
PCMB 1 mM, 47% loss of activity Acidithiobacillus thiooxidans

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.95
-
sulfite
-
Acidithiobacillus thiooxidans

Localization

Localization Comment Organism GeneOntology No. Textmining
membrane bound to Acidithiobacillus thiooxidans 16020
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
62000
-
x * 62000 + x * 70000 + x * 74000, SDS-PAGE Acidithiobacillus thiooxidans
70000
-
x * 62000 + x * 70000 + x * 74000, SDS-PAGE Acidithiobacillus thiooxidans
74000
-
x * 62000 + x * 70000 + x * 74000, SDS-PAGE Acidithiobacillus thiooxidans
400000
-
gel filtration Acidithiobacillus thiooxidans

Organism

Organism UniProt Comment Textmining
Acidithiobacillus thiooxidans
-
JCM7814
-
Acidithiobacillus thiooxidans JCM 7814
-
JCM7814
-

Purification (Commentary)

Purification (Comment) Organism
-
Acidithiobacillus thiooxidans

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
21
-
-
Acidithiobacillus thiooxidans

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
sulfite + ferricyanide + H2O
-
Acidithiobacillus thiooxidans sulfate + ferrocyanide + H+
-
?
sulfite + ferricyanide + H2O
-
Acidithiobacillus thiooxidans JCM 7814 sulfate + ferrocyanide + H+
-
?
sulfite + ferricytochrome c + H2O
-
Acidithiobacillus thiooxidans sulfate + ferrocytochrome c + H+
-
?
sulfite + ferricytochrome c + H2O
-
Acidithiobacillus thiooxidans JCM 7814 sulfate + ferrocytochrome c + H+
-
?

Subunits

Subunits Comment Organism
? x * 62000 + x * 70000 + x * 74000, SDS-PAGE Acidithiobacillus thiooxidans

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
20
-
-
Acidithiobacillus thiooxidans

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
30
-
1 h, stable below Acidithiobacillus thiooxidans
40
-
1 h, about 20% loss of activity Acidithiobacillus thiooxidans
50
-
1 h, complete loss of activity Acidithiobacillus thiooxidans

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5
-
-
Acidithiobacillus thiooxidans

pH Stability

pH Stability pH Stability Maximum Comment Organism
7
-
20°C, 1 h, stable Acidithiobacillus thiooxidans
9
-
20°C, 1 h, about 20% loss of activity Acidithiobacillus thiooxidans