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Literature summary for 1.1.1.39 extracted from

  • Grover, S.D.; Canellas, P.F.; Wedding, R.T.
    Purification of NAD malic enzyme from potato and investigation of some physical and kinetic properties (1981), Arch. Biochem. Biophys., 209, 396-407.
    View publication on PubMed

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.3
-
NADP+ activation by Mn2+ Solanum tuberosum
0.5
-
NAD+ activation by Mn2+ Solanum tuberosum
0.76
-
(S)-malate with NAD+ and Mn2+ Solanum tuberosum
0.9
-
NAD+ activation by Mg2+ Solanum tuberosum
1.7
-
NADP+ with NADP+ as coenzyme Solanum tuberosum
4.2
-
(S)-malate with NADP+ and Mn2+ Solanum tuberosum
12.3
-
(S)-malate with NADP+ and Mg2+ Solanum tuberosum
14
-
(S)-malate with NAD+ and Mg2+ Solanum tuberosum

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ activation by Mg2+ or Mn2+ Solanum tuberosum
Mn2+ activation by Mn2+ or Mg2+ Solanum tuberosum

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
58000
-
alpha4beta4, 4 * 61000 + 4 * 58000, SDS-PAGE Solanum tuberosum
61000
-
alpha4beta4, 4 * 61000 + 4 * 58000, SDS-PAGE Solanum tuberosum
490000
-
gel filtration in presence of 5 mM dithiothreitol and 2 mM MgCl2 Solanum tuberosum

Organism

Organism UniProt Comment Textmining
Solanum tuberosum
-
var. Chieftan
-

Purification (Commentary)

Purification (Comment) Organism
-
Solanum tuberosum

Source Tissue

Source Tissue Comment Organism Textmining
tuber
-
Solanum tuberosum
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
72.5
-
-
Solanum tuberosum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
(S)-malate + NADP+
-
Solanum tuberosum pyruvate + CO2 + NADPH
-
?
malate + NAD+
-
Solanum tuberosum pyruvate + CO2 + NADH + H+
-
?

Subunits

Subunits Comment Organism
octamer alpha4beta4, 4 * 61000 + 4 * 58000, SDS-PAGE Solanum tuberosum

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
617
-
(S)-malate
-
Solanum tuberosum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.4
-
activity with NADP+ and Mg2+ Solanum tuberosum
6.5
-
activity with NADP+ and Mn2+ Solanum tuberosum
6.8
-
activity with NAD+ Solanum tuberosum

Cofactor

Cofactor Comment Organism Structure
NAD+ cofactor Solanum tuberosum
NADP+
-
Solanum tuberosum