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Literature summary extracted from

  • Goodenough, P.W.; Prosser, I.M.; Young, K.
    NADP-linked malic enzyme and malate metabolism in ageing tomato fruit (1985), Phytochemistry, 24, 1157-1162.
No PubMed abstract available

Activating Compound

EC Number Activating Compound Comment Organism Structure
1.1.1.40 fumarate slight activation at low concentration Solanum lycopersicum
1.1.1.40 succinate slight activation up to 10 mM Solanum lycopersicum

Inhibitors

EC Number Inhibitors Comment Organism Structure
1.1.1.40 2-oxoglutarate strong Solanum lycopersicum
1.1.1.40 fumarate at high concentration Solanum lycopersicum
1.1.1.40 oxaloacetate strong Solanum lycopersicum
1.1.1.40 pyruvate non-competitive inhibition Solanum lycopersicum
1.1.1.40 succinate slight inhibition at high concentrations Solanum lycopersicum

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.1.1.40 0.038
-
NADP+
-
Solanum lycopersicum
1.1.1.40 0.53
-
(S)-malate
-
Solanum lycopersicum

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
1.1.1.40 cytosol
-
Solanum lycopersicum 5829
-

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
1.1.1.40 Mg2+ absolute requirement for a divalent cation, Mn2+ or Mg2+ Solanum lycopersicum
1.1.1.40 Mg2+ Km: 0.315 mM Solanum lycopersicum
1.1.1.40 Mn2+ Km: 0.210 mM Solanum lycopersicum
1.1.1.40 Mn2+ absolute requirement for a divalent cation, Mn2+ or Mg2+ Solanum lycopersicum

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
1.1.1.40 260000 265000 gel filtration Solanum lycopersicum

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
1.1.1.40 additional information Solanum lycopersicum the specific activity falls rapidly as the fruit ripens ?
-
?

Organism

EC Number Organism UniProt Comment Textmining
1.1.1.40 Solanum lycopersicum
-
-
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
1.1.1.40 fruit
-
Solanum lycopersicum
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
1.1.1.40 additional information
-
-
Solanum lycopersicum

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.1.1.40 (S)-malate + NADP+
-
Solanum lycopersicum pyruvate + CO2 + NADPH
-
r
1.1.1.40 additional information the specific activity falls rapidly as the fruit ripens Solanum lycopersicum ?
-
?

Subunits

EC Number Subunits Comment Organism
1.1.1.40 tetramer 4 * 64000-65000, SDS-PAGE Solanum lycopersicum