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Literature summary for 1.1.5.2 extracted from

  • Koh, H.; Igarashi, S.; Sode, K.
    Surface charge engineering of PQQ glucose dehydrogenase for downstream processing (2003), Biotechnol. Lett., 25, 1695-1701.
    View publication on PubMed

Application

Application Comment Organism
biotechnology surface charge engineering of the enzyme for optimization of downstream processing in large scale enzyme production Acinetobacter calcoaceticus

Cloned(Commentary)

Cloned (Comment) Organism
expression in the periplasm of Escherichia coli strain PP2418, with and without a C-terminal tag of 3 Arg residues Acinetobacter calcoaceticus

Protein Variants

Protein Variants Comment Organism
Q209R/N240R/T389R site-directed mutagenesis, increased thermal stability compared to the wild-type enzyme Acinetobacter calcoaceticus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information kinetics Acinetobacter calcoaceticus
2
-
D-galactose recombinant wild-type enzyme, pH 7.0, 25°C Acinetobacter calcoaceticus
4
-
D-galactose recombinant tagged enzyme, pH 7.0, 25°C Acinetobacter calcoaceticus
5
-
D-galactose recombinant triple mutant enzyme, pH 7.0, 25°C Acinetobacter calcoaceticus
10
-
maltose recombinant wild-type enzyme, pH 7.0, 25°C Acinetobacter calcoaceticus
11
-
maltose recombinant tagged enzyme, pH 7.0, 25°C Acinetobacter calcoaceticus
13
-
maltose recombinant triple mutant enzyme, pH 7.0, 25°C Acinetobacter calcoaceticus
25
-
D-glucose recombinant triple mutant enzyme, pH 7.0, 25°C Acinetobacter calcoaceticus
25
-
lactose recombinant wild-type enzyme, pH 7.0, 25°C Acinetobacter calcoaceticus
26
-
lactose recombinant tagged enzyme, pH 7.0, 25°C Acinetobacter calcoaceticus
27
-
D-glucose recombinant wild-type enzyme and tagged enzyme, pH 7.0, 25°C Acinetobacter calcoaceticus
36
-
lactose recombinant triple mutant enzyme, pH 7.0, 25°C Acinetobacter calcoaceticus
41
-
3-O-methyl-D-glucose recombinant wild-type enzyme, pH 7.0, 25°C Acinetobacter calcoaceticus
53
-
3-O-methyl-D-glucose recombinant tagged enzyme, pH 7.0, 25°C Acinetobacter calcoaceticus
56
-
3-O-methyl-D-glucose recombinant triple mutant enzyme, pH 7.0, 25°C Acinetobacter calcoaceticus
63
-
allose recombinant wild-type enzyme, pH 7.0, 25°C Acinetobacter calcoaceticus
75
-
allose recombinant tagged enzyme, pH 7.0, 25°C Acinetobacter calcoaceticus
76
-
allose recombinant triple mutant enzyme, pH 7.0, 25°C Acinetobacter calcoaceticus

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ required Acinetobacter calcoaceticus

Organism

Organism UniProt Comment Textmining
Acinetobacter calcoaceticus P13650
-
-

Purification (Commentary)

Purification (Comment) Organism
optimization of the purification process involving cation exchange chromatography in presence of Zn2+ Acinetobacter calcoaceticus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3-O-methyl-D-glucose + 2,6-dichlorophenolindolphenol
-
Acinetobacter calcoaceticus 3-O-methyl-D-glucono-1,5-lactone + ?
-
?
allose + 2,6-dichlorophenolindolphenol
-
Acinetobacter calcoaceticus ?
-
?
D-galactose + 2,6-dichlorophenolindolphenol
-
Acinetobacter calcoaceticus D-galactono-1,5-lactone + ?
-
?
D-glucose + 2,6-dichlorophenolindolphenol
-
Acinetobacter calcoaceticus D-glucono-1,5-lactone + ?
-
?
D-glucose + ubiquinone
-
Acinetobacter calcoaceticus D-glucono-1,5-lactone + ubiquinol
-
?
lactose + 2,6-dichlorophenolindolphenol
-
Acinetobacter calcoaceticus ?
-
?
maltose + 2,6-dichlorophenolindolphenol
-
Acinetobacter calcoaceticus ?
-
?

Synonyms

Synonyms Comment Organism
PQQ glucose dehydrogenase
-
Acinetobacter calcoaceticus
PQQGDH
-
Acinetobacter calcoaceticus

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
25
-
assay at Acinetobacter calcoaceticus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
55
-
recombinant tagged wild-type enzyme and mutant enzyme show about 90% remaining activity after 10 min, the nontagged wild-type enzyme shows about 40% remaining activity after 10 min Acinetobacter calcoaceticus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
assay at Acinetobacter calcoaceticus

Cofactor

Cofactor Comment Organism Structure
pyrroloquinoline quinone i.e. PQQ Acinetobacter calcoaceticus