Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary for 3.1.1.20 extracted from

  • Barthomeuf, C.; Regerat, F.; Pourrat, H.
    Production, purification and characterization of a tannase from Aspergillus niger LCF 8 (1994), J. Ferment. Bioeng., 77, 320-323.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
diisopropylfluorophosphate 83% inhibition Aspergillus niger
additional information not inhibited by o-phenanthroline, PMSF, EDTA, 2-mercaptomethanol, sodium thioglycolate Aspergillus niger

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ CaCl2, no effect on the activity Aspergillus niger
Co2+ CoCl2 no effect on activity Aspergillus niger
Cu2+ CuSO4: 68% inhibition Aspergillus niger
FeCl3 13% inhibition Aspergillus niger
Mg2+ MgSO4 no effect on activity Aspergillus niger
Mn2+ MnCl2 no effect on activity Aspergillus niger
Zn2+ ZnCl2 39% inhibition Aspergillus niger

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
53000
-
2 * 53000, SDS-PAGE Aspergillus niger
186000
-
glycoprotein containing 43% sugars, nondenaturing PAGE Aspergillus niger

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
tannic acid + H2O Aspergillus niger
-
?
-
?
tannic acid + H2O Aspergillus niger LCF 8
-
?
-
?

Organism

Organism UniProt Comment Textmining
Aspergillus niger
-
LCF 8
-
Aspergillus niger LCF 8
-
LCF 8
-

Posttranslational Modification

Posttranslational Modification Comment Organism
side-chain modification glycoprotein, containg 43% sugars Aspergillus niger

Purification (Commentary)

Purification (Comment) Organism
29.1fold Aspergillus niger

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
118.8
-
3 step purification Aspergillus niger

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
tannic acid + H2O
-
Aspergillus niger gallic acid + ?
-
?
tannic acid + H2O
-
Aspergillus niger LCF 8 gallic acid + ?
-
?
tannic acid + H2O
-
Aspergillus niger ?
-
?
tannic acid + H2O
-
Aspergillus niger LCF 8 ?
-
?

Subunits

Subunits Comment Organism
dimer 2 * 53000, SDS-PAGE Aspergillus niger

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
35
-
-
Aspergillus niger

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
20 45 active between these temperatures Aspergillus niger

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
4 45 stable between Aspergillus niger

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6
-
pI 4.3 Aspergillus niger

pH Stability

pH Stability pH Stability Maximum Comment Organism
3.5 8
-
Aspergillus niger