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Literature summary extracted from

  • Shimomura, Y.; Paxton, R.; Ozawa, T.; Harris, R.A.
    Purification of branched chain alpha-ketoacid dehydrogenase complex from rat liver (1987), Anal. Biochem., 163, 74-78.
    View publication on PubMed

Activating Compound

EC Number Activating Compound Comment Organism Structure
1.2.4.4 thiamine diphosphate
-
Rattus norvegicus

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.2.4.4 0.0215
-
4-methyl-2-oxopentanoate
-
Rattus norvegicus
1.2.4.4 0.0219
-
3-methyl-2-oxopentanoate
-
Rattus norvegicus
1.2.4.4 0.0372
-
3-methyl-2-oxobutanoate
-
Rattus norvegicus
1.2.4.4 0.97
-
pyruvate
-
Rattus norvegicus

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
1.2.4.4 38500
-
alphax,betax, x * 46500 + x * 38500, SDS-PAGE Rattus norvegicus
1.2.4.4 46500
-
alphax,betax, x * 46500 + x * 38500, SDS-PAGE Rattus norvegicus

Organism

EC Number Organism UniProt Comment Textmining
1.2.4.4 Rattus norvegicus
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
1.2.4.4 hydrophobic interaction chromatography on phenyl-Sepharose Rattus norvegicus
1.2.4.4 multienzyme complex Rattus norvegicus

Source Tissue

EC Number Source Tissue Comment Organism Textmining
1.2.4.4 liver
-
Rattus norvegicus
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
1.2.4.4 7.46
-
-
Rattus norvegicus

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.2.4.4 3-methyl-2-oxobutanoate + [dihydrolipoyllysine-residue (2-methylpropanoyl)transferase] lipoyllysine
-
Rattus norvegicus [dihydrolipoyllysine-residue (2-methylpropanoyl)transferase] S-(2-methylpropanoyl)dihydrolipoyllysine + CO2
-
?
1.2.4.4 3-methyl-2-oxopentanoate + [dihydrolipoyllysine-residue (2-methylpropanoyl)transferase] lipoyllysine
-
Rattus norvegicus [dihydrolipoyllysine-residue (2-methylpropanoyl)transferase] S-(2-methylbutanoyl)dihydrolipoyllysine + CO2
-
?
1.2.4.4 4-methyl-2-oxopentanoate + NAD+ + CoA
-
Rattus norvegicus 3-methylbutanoyl-CoA + CO2 + NADH
-
?
1.2.4.4 pyruvate + NAD+ + CoA
-
Rattus norvegicus acetyl-CoA + CO2 + NADH
-
?

Subunits

EC Number Subunits Comment Organism
1.2.4.4 ? alphax,betax, x * 46500 + x * 38500, SDS-PAGE Rattus norvegicus

Cofactor

EC Number Cofactor Comment Organism Structure
1.2.4.4 CoA
-
Rattus norvegicus
1.2.4.4 NAD+
-
Rattus norvegicus