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Literature summary for 1.4.1.4 extracted from

  • Florencio, F.J.; Marques, S.; Candau, P.
    Identification and characterization of a glutamate dehydrogenase in the unicellular cyanobacterium Synechocystis PCC 6803 (1987), FEBS Lett., 223, 37-41.
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
CaCl2 at 20 mM, 25% and 108% activation of reductive amination and oxidative deamination respectively Synechocystis sp.

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.02
-
NADPH reductive amination Synechocystis sp.
1.5
-
2-oxoglutarate reductive amiantion Synechocystis sp.
3.7
-
NH4+ reductive amination Synechocystis sp.

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
46000
-
alpha4, 4 * 46000, SDS-PAGE Synechocystis sp.
208000
-
gel filtration Synechocystis sp.

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
L-glutamate + NADP+ + H2O Synechocystis sp.
-
2-oxoglutarate + NADPH + NH3
-
r

Organism

Organism UniProt Comment Textmining
Synechocystis sp.
-
strain PCC 6803
-

Purification (Commentary)

Purification (Comment) Organism
-
Synechocystis sp.

Storage Stability

Storage Stability Organism
0-4°C, Tris-HCl buffer, pH 9.0, 2 months, 100% activity Synechocystis sp.

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2-oxoglutarate + NH4+ + NADPH
-
Synechocystis sp. L-glutamate + NADP+
-
?
L-glutamate + NADP+ + H2O
-
Synechocystis sp. 2-oxoglutarate + NADPH + NH3
-
r

Subunits

Subunits Comment Organism
homotetramer alpha4, 4 * 46000, SDS-PAGE Synechocystis sp.

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5 8 reductive amination Synechocystis sp.

Cofactor

Cofactor Comment Organism Structure
NADP+
-
Synechocystis sp.
NADPH
-
Synechocystis sp.