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Literature summary for 3.2.1.11 extracted from

  • Zhang, Y.; Li, R.; Zhang, H.; Wu, M.; Hu, X.
    Purification, characterization, and application of a thermostable dextranase from Talaromyces pinophilus (2017), J. Ind. Microbiol. Biotechnol., 44, 317-327 .
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
SDS 10 mM, 115% of initial activity Talaromyces pinophilus
Urea 1 mM, 115% of initial activity Talaromyces pinophilus

Inhibitors

Inhibitors Comment Organism Structure
Cu2+ 5 mM, 3% residual activity Talaromyces pinophilus
EDTA 5 mM, 76% residual activity Talaromyces pinophilus
Fe3+ 5 mM, 77% residual activity Talaromyces pinophilus
Tris/HCl 5 mM, 2% residual activity Talaromyces pinophilus
Zn2+ 5 mM, 18% residual activity Talaromyces pinophilus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.02
-
dextran T100 pH 6.0, 45°C Talaromyces pinophilus
0.063
-
dextran T70 pH 6.0, 45°C Talaromyces pinophilus
0.09
-
dextran T40 pH 6.0, 45°C Talaromyces pinophilus

Organism

Organism UniProt Comment Textmining
Talaromyces pinophilus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Talaromyces pinophilus

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
14894
-
pH 6.0, 45°C Talaromyces pinophilus

Storage Stability

Storage Stability Organism
-18°C, 20 mM acetate, pH 6.0, stable for 56 days Talaromyces pinophilus
4°C, 20 mM acetate, pH 6.0, stable for 56 days Talaromyces pinophilus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
dextran T100 + H2O
-
Talaromyces pinophilus isomaltose + isomaltotriose + isomaltooligosaccharides
-
?
dextran T40 + H2O
-
Talaromyces pinophilus isomaltose + isomaltotriose + isomaltooligosaccharides
-
?
dextran T70 + H2O
-
Talaromyces pinophilus isomaltose + isomaltotriose + isomaltooligosaccharides
-
?
additional information no activity towards beta-cyclodextrin, chitin, Sepharose 6B, chitosan, and sucrose. Low activity towards soluble starch Talaromyces pinophilus ?
-
?

Subunits

Subunits Comment Organism
? x * 58000, SDS-PAGE Talaromyces pinophilus

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
45
-
-
Talaromyces pinophilus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
45
-
10 h, pH 6.0, almost no loss of activity Talaromyces pinophilus

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
163
-
dextran T40 pH 6.0, 45°C Talaromyces pinophilus
369
-
dextran T70 pH 6.0, 45°C Talaromyces pinophilus
4872
-
dextran T100 pH 6.0, 45°C Talaromyces pinophilus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6
-
-
Talaromyces pinophilus

pH Stability

pH Stability pH Stability Maximum Comment Organism
3 10
-
Talaromyces pinophilus

kcat/KM [mM/s]

kcat/KM Value [1/mMs-1] kcat/KM Value Maximum [1/mMs-1] Substrate Comment Organism Structure
1800
-
dextran T40 pH 6.0, 45°C Talaromyces pinophilus
5810
-
dextran T70 pH 6.0, 45°C Talaromyces pinophilus
242400
-
dextran T100 pH 6.0, 45°C Talaromyces pinophilus