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Literature summary for 3.1.1.20 extracted from

  • Chhokar, V.; Sangwan, M.; Beniwal, V.; Nehra, K.; Nehra, K.S.
    Effect of additives on the activity of tannase from Aspergillus awamori MTCC9299 (2010), Appl. Biochem. Biotechnol., 160, 2256-2264.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
Benzene increases activity by 2fold at 60% v/v concentration Aspergillus awamori
butanol increases activity by 2fold at 60% v/v concentration Aspergillus awamori

Inhibitors

Inhibitors Comment Organism Structure
acetic acid completely inhibits activity Aspergillus awamori
acetone gradual decrease in activity with increasing concentration, at 60%, activity is reduced to 55.01% Aspergillus awamori
chloroform completely inhibits activity Aspergillus awamori
Co2+ at 1 mM inhibits by 71.14% Aspergillus awamori
Cu2+ at 1 mM inhibits by 51.21% Aspergillus awamori
ethanol inhibits by 48.84% initially, thereafter complete loss in the enzyme activity at 40% and 60% Aspergillus awamori
Fe3+ at 1 mM inhibits by 76.89% Aspergillus awamori
Isoamylalcohol completely inhibits activity Aspergillus awamori
Isopropyl alcohol completely inhibits activity Aspergillus awamori
methanol initial inhibitory effect at 20% and 40%, original activity is regained at 60% Aspergillus awamori
additional information 1 mM Zn2+ has no effect Aspergillus awamori
Toluene gradual decrease in activity with increasing concentration, at 60%, activity is reduced to 28.49% Aspergillus awamori

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ at 1 mM stimulates by 16% Aspergillus awamori
K+ at 1 mM stimulates by 9% Aspergillus awamori
Mg2+ at 1 mM stimulates by 23.9% Aspergillus awamori
Mn2+ at 1 mM stimulates by 15.23% Aspergillus awamori
Na+ at 1 mM stimulates by 11% Aspergillus awamori

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
101000
-
x * 101000, SDS-PAGE Aspergillus awamori

Organism

Organism UniProt Comment Textmining
Aspergillus awamori
-
MTCC9299
-
Aspergillus awamori MTCC9299
-
MTCC9299
-

Purification (Commentary)

Purification (Comment) Organism
by ammonium sulfate precipitation followed by ion-exchange chromatography, 19.5folf with 13.5% yield, to homogeneity Aspergillus awamori

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
489
-
crude extract Aspergillus awamori
9550
-
19.5fold purified enzyme Aspergillus awamori

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
tannic acid + H2O
-
Aspergillus awamori gallic acid + D-glucose
-
?
tannic acid + H2O
-
Aspergillus awamori MTCC9299 gallic acid + D-glucose
-
?

Subunits

Subunits Comment Organism
? x * 101000, SDS-PAGE Aspergillus awamori

Synonyms

Synonyms Comment Organism
tannase
-
Aspergillus awamori

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
30
-
-
Aspergillus awamori

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.5
-
-
Aspergillus awamori