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Literature summary for 1.1.1.69 extracted from

  • Adachi, O.; Shinagawa, E.; Matsushita, K.; Ameyama, M.
    Crystallization and properties of 5-keto-D-gluconate reductase from Gluconobacter suboxydans (1979), Agric. Biol. Chem., 43, 75-83.
No PubMed abstract available

Crystallization (Commentary)

Crystallization (Comment) Organism
-
Gluconobacter oxydans

Inhibitors

Inhibitors Comment Organism Structure
Hg2+
-
Gluconobacter oxydans
PCMB
-
Gluconobacter oxydans

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.006
-
NADPH
-
Gluconobacter oxydans
0.02
-
NADP+
-
Gluconobacter oxydans
0.9
-
5-Dehydro-D-gluconate
-
Gluconobacter oxydans
20
-
D-gluconate
-
Gluconobacter oxydans

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
25000
-
4 * 25000, SDS-PAGE Gluconobacter oxydans

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
5-dehydro-D-gluconate + NADPH Gluconobacter oxydans the suggested physiological role of the enzyme is to reduce 5-dehydro-D-gluconate to D-gluconate to supply a carbon source and regenerate NADP+ D-gluconate + NADP+
-
?

Organism

Organism UniProt Comment Textmining
Gluconobacter oxydans
-
IFO 12528
-

Purification (Commentary)

Purification (Comment) Organism
-
Gluconobacter oxydans

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
69.69
-
-
Gluconobacter oxydans

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
5-dehydro-D-gluconate + NADPH
-
Gluconobacter oxydans D-gluconate + NADP+
-
?
5-dehydro-D-gluconate + NADPH the suggested physiological role of the enzyme is to reduce 5-dehydro-D-gluconate to D-gluconate to supply a carbon source and regenerate NADP+ Gluconobacter oxydans D-gluconate + NADP+
-
?

Subunits

Subunits Comment Organism
tetramer 4 * 25000, SDS-PAGE Gluconobacter oxydans

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
50
-
reduction of 5-dehydro-D-gluconate and oxidation of D-gluconate Gluconobacter oxydans

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
additional information
-
thermal stability is enhanced by addition of either D-gluconate or 5-keto-D-gluconate, or both Gluconobacter oxydans

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.5
-
reduction of 5-dehydro-D-gluconate Gluconobacter oxydans
10
-
oxidation of D-gluconate in presence of NADP+ Gluconobacter oxydans

Cofactor

Cofactor Comment Organism Structure
NADPH cofactor Gluconobacter oxydans