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Literature summary for 1.1.1.39 extracted from

  • Voegele, R.T.; Mitsch, M.J.; Finan, T.M.
    Characterization of two members of a novel malic enzyme class (1999), Biochim. Biophys. Acta, 1432, 275-285.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
ADP slight stimulstion Sinorhizobium meliloti
aspartate stimulates Sinorhizobium meliloti
ATP slight stimulstion Sinorhizobium meliloti
fructose 1,6-bisphosphate stimulates Sinorhizobium meliloti
fumarate stimulates Sinorhizobium meliloti
succinate stimulates Sinorhizobium meliloti

Inhibitors

Inhibitors Comment Organism Structure
acetyl-CoA potent inhibitor Sinorhizobium meliloti
bicarbonate
-
Sinorhizobium meliloti
D-Tartrate
-
Sinorhizobium meliloti
DL-lactate
-
Sinorhizobium meliloti
glyoxylate
-
Sinorhizobium meliloti
malonate
-
Sinorhizobium meliloti
NADH
-
Sinorhizobium meliloti
oxaloacetate
-
Sinorhizobium meliloti
phosphoenolpyruvate
-
Sinorhizobium meliloti
pyruvate
-
Sinorhizobium meliloti
Tartronate
-
Sinorhizobium meliloti

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.089
-
NAD+
-
Sinorhizobium meliloti
1.56
-
NADP+
-
Sinorhizobium meliloti

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
82000
-
x * 82000, SDS-PAGE Sinorhizobium meliloti

Organism

Organism UniProt Comment Textmining
Sinorhizobium meliloti
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Sinorhizobium meliloti

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
45.2
-
-
Sinorhizobium meliloti

Storage Stability

Storage Stability Organism
-20°C, stable for several weeks Sinorhizobium meliloti
4°C, loss of activity upon prolonged storage Sinorhizobium meliloti

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
(S)-malate + NADP+
-
Sinorhizobium meliloti pyruvate + CO2 + NADPH
-
r
malate + NAD+
-
Sinorhizobium meliloti pyruvate + CO2 + NADH + H+
-
ir
additional information no decarboxylation of oxaloacetate Sinorhizobium meliloti ?
-
?

Subunits

Subunits Comment Organism
? x * 82000, SDS-PAGE Sinorhizobium meliloti

Cofactor

Cofactor Comment Organism Structure
NAD+ cofactor Sinorhizobium meliloti
NADP+ cofactor Sinorhizobium meliloti