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Literature summary for 4.1.1.1 extracted from

  • Oba, K.; Uritani, I.
    Purification and characterization of pyruvate decarboxylase from sweet potato roots (1975), J. Biochem., 77, 1205-1213.
    View publication on PubMed

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.55
-
pyruvate histidine buffer, enzyme from healthy tissue Ipomoea batatas
0.85
-
pyruvate histidine buffer, enzyme from diseased tissue Ipomoea batatas
1.7
-
pyruvate phosphate buffer, enzyme from healthy tissue Ipomoea batatas
2.3
-
pyruvate phosphate buffer, enzyme from diseased tissue Ipomoea batatas

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ 0.5 mM, metal ions activate in descending order: Mg2+, Zn2+, Mn2+, Ca2+ Ipomoea batatas
Mg2+ 0.5 mM, metal ions activate in the descending order: Mg2+, Zn2+, Mn2+, Ca2+ Ipomoea batatas
Mn2+ 0.5 mM, metal ions activate in descending order: Mg2+, Zn2+, Mn2+, Ca2+ Ipomoea batatas
Zn2+ 0.5 mM, metal ions activate in descending order: Mg2+, Zn2+, Mn2+, Ca2+ Ipomoea batatas

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
60000
-
4 * 60000, SDS-PAGE Ipomoea batatas
240000
-
disc gel electrophoresis Ipomoea batatas

Organism

Organism UniProt Comment Textmining
Ipomoea batatas
-
-
-

Purification (Commentary)

Purification (Comment) Organism
partial Ipomoea batatas

Source Tissue

Source Tissue Comment Organism Textmining
root healthy and diseased tissue Ipomoea batatas
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.71
-
diseased preparations Ipomoea batatas
12.3
-
healthy preparations Ipomoea batatas

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
pyruvate
-
Ipomoea batatas acetaldehyde + CO2
-
?

Subunits

Subunits Comment Organism
tetramer 4 * 60000, SDS-PAGE Ipomoea batatas

pH Range

pH Minimum pH Maximum Comment Organism
additional information
-
-
Ipomoea batatas