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Literature summary for 1.2.7.11 extracted from

  • Zhang, Q.; Iwaaki, T.; Wakagi, T.; Oshima, T.
    2-Oxoacid:ferredoxin oxidoreductase from the thermoacidophilic archaeon, Sulfolobus sp. strain 7 (1996), J. Biochem., 120, 587-599.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
-
Sulfolobus sp.

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.25
-
pyruvate pH 6.8, 50°C Sulfolobus sp.
0.87
-
2-oxoglutarate pH 6.8, 50°C Sulfolobus sp.

Metals/Ions

Metals/Ions Comment Organism Structure
Iron contains one [4Fe-4S]2+,1+ cluster per alpha/beta structure Sulfolobus sp.
Mg2+ contains 1.4 mol of Mg per mol of protein Sulfolobus sp.

Organism

Organism UniProt Comment Textmining
Sulfolobus sp. P72578 and P72579 P72578: subunit alpha, P72579: subunit beta
-
Sulfolobus sp. 7 P72578 and P72579 P72578: subunit alpha, P72579: subunit beta
-

Oxidation Stability

Oxidation Stability Organism
purified enzyme is stable against oxygen Sulfolobus sp.

Purification (Commentary)

Purification (Comment) Organism
-
Sulfolobus sp.

Storage Stability

Storage Stability Organism
-80°C, purified enzyme can be stored after dialysis against 20 mM potassium phosphate buffer, pH 6.8 Sulfolobus sp.
20°C, 4°C or -80°C, activity in cytosolic fraction is not very stable Sulfolobus sp.

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2-oxobutyrate + CoA + oxidized ferredoxin
-
Sulfolobus sp. propanoyl-CoA + CO2 + reduced ferredoxin
-
?
2-oxobutyrate + CoA + oxidized ferredoxin
-
Sulfolobus sp. 7 propanoyl-CoA + CO2 + reduced ferredoxin
-
?
2-oxoglutarate + CoA + 2 oxidized ferredoxin
-
Sulfolobus sp. succinyl-CoA + CO2 + 2 reduced ferredoxin + 2 H+
-
?
2-oxoglutarate + CoA + 2 oxidized ferredoxin
-
Sulfolobus sp. 7 succinyl-CoA + CO2 + 2 reduced ferredoxin + 2 H+
-
?
pyruvate + CoA + 2 oxidized ferredoxin Vmax/Km is 1.9fold higher than that for 2-oxoglutarate Sulfolobus sp. acetyl-CoA + CO2 + 2 reduced ferredoxin + 2 H+
-
?
pyruvate + CoA + 2 oxidized ferredoxin Vmax/Km is 1.9fold higher than that for 2-oxoglutarate Sulfolobus sp. 7 acetyl-CoA + CO2 + 2 reduced ferredoxin + 2 H+
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
50
-
assay at Sulfolobus sp.

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.8
-
assay at Sulfolobus sp.

Cofactor

Cofactor Comment Organism Structure
thiamine diphosphate the enzyme contains one thiamine diphosphate per alphabeta structure Sulfolobus sp.