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Literature summary for 1.4.1.20 extracted from

  • Villalonga, R.; Tachibana, S.; Perez, Y.; Asano, Y.
    Increased conformational and thermal stability properties for phenylalanine dehydrogenase by chemical glycosidation with end-group activated dextran (2005), Biotechnol. Lett., 27, 1311-1317.
    View publication on PubMed

General Stability

General Stability Organism
the enzyme chemically glycosylated with an end-group aminated dextran shows improved thermal and conformational stability Bacillus badius

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.164
-
L-Phe 25°C, pH 10.4, dextran-modified enzyme Bacillus badius
0.215
-
L-Phe 25°C, pH 10.4, native enzyme Bacillus badius

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
325600
-
native enzyme, gel filtration Bacillus badius
342000
-
dextran-modified enzyme, gel filtration Bacillus badius

Organism

Organism UniProt Comment Textmining
Bacillus badius
-
recombinantly expressed in Escherichia coli
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-Phe + H2O + NAD+
-
Bacillus badius phenylpyruvate + NH3 + NADH
-
?

Synonyms

Synonyms Comment Organism
PheDH
-
Bacillus badius

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
40
-
native enzyme Bacillus badius
50
-
dextran-modified enzyme Bacillus badius

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
25 60 20°C: about 60% of maximal activity, 55°C: about 85% of maximal activity, 60°C: about 35% of maximal activity Bacillus badius
25 55 20°C: about 60% of maximal activity, 55°C, about 65% of maximal activity, native enzyme Bacillus badius

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
40
-
10 min, native enzyme is stable up to Bacillus badius
54
-
T50-value of native enzyme Bacillus badius
55
-
10 min, dextran-modified enzyme is stable up to Bacillus badius
62
-
T50-value of the dextran-modified enzyme Bacillus badius

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
714
-
L-Phe 25°C, pH 10.4, dextran-modified enzyme Bacillus badius
816
-
L-Phe 25°C, pH 10.4, native enzyme Bacillus badius