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BRENDA support

Ligand Tannic acid

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Basic Ligand Information

Molecular Structure
Picture of Tannic acid (click for magnification)
Molecular Formula
BRENDA Name
InChIKey
C75H50O36
Tannic acid
FUURVXWEZZSARX-IODKGKSLSA-N

Roles as Enzyme Ligand

In Vivo Substrate in Enzyme-catalyzed Reactions (7 results)

EC NUMBER
PROVEN IN VIVO REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE

Substrate in Enzyme-catalyzed Reactions (14 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
tannic acid + O2 = ?
show the reaction diagram
-
tannic acid + O2 = ?
show the reaction diagram
-
tannic acid + H2O2 + H+ = ?
show the reaction diagram
-
tannic acid + H2O2 = ? + H2O
show the reaction diagram
-

Activator in Enzyme-catalyzed Reactions (4 results)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
at high concentration and in presence of cofactors inhibition, at low concentrations stimulation
-

Inhibitor in Enzyme-catalyzed Reactions (31 results)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
enzyme-inhibitor interaction measurement by SPR
-
at high concentration and in presence of cofactors inhibition, at low concentrations stimulation
-
efficiently inhibits N-acylhomoserine lactone production by isoform RhlI, specifically target short-chain N-acylhomoserine lactone synthase RhlI
-
complete inhibition at 0.001 mM
-
0.005 mg, complete inhibition of phosphorylase B, 63% and 50% inhibition of phosphorylase A and C respectively
-
80% inhibition at 0.2 mM, mixed-type inhibition in vitro
-
inhibits both DisA and phosphodiesterase YybT
-
IC50 is 0.14 mM
-
continous decrease in activity of nuclear enzyme activity, reduction in enzyme expression
-
complete inhibition at 10 mM, 81.8% inhibition at 1 mM
-
complete inhibition at 0.0625 mM with 4-nitrophenyl beta-D-glucopyranoside as substrate
-
inhibition of brush border sucrase by polyphenols in mouse intestine. Sucrase inhibition by tannic acid is a pure K effect at acidic pH and uncompetitive type in the alkaline pH range
-
competitive, almost complete inhibition. Pretreatment of collagen fibers with tannic acid results in polymerization and complex formation
-
above 0.004 mM, complete inactivation at 0.05 mM
-
nonlinear competitive inhibitor
-

Enzyme Kinetic Parameters

kcat Value (Turnover Number) (9 results)

EC NUMBER
TURNOVER NUMBER [1/S]
TURNOVER NUMBER MAXIMUM [1/S]
COMMENTARY
LITERATURE
1471.9
-
pH 7.0, 40°C

KM Value (38 results)

EC NUMBER
KM VALUE [MM]
KM VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE
0.0251
-
pH 7.0, 40°C

Ki Value (3 results)

EC NUMBER
KI VALUE [MM]
KI VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE
0.35
-
pH 6.8, 37°C
0.02
-
pH 7.5, 25°C
0.0002
-
at pH 6.5 and 30°C

IC50 Value (13 results)

EC NUMBER
IC50 VALUE
IC50 VALUE MAXIMUM
COMMENTARY
LITERATURE
0.00078
-
-
-999
-
IC50 value 6.4 g/l, pH 7.0, 25°C
0.00028
-
in 50 mM HEPES pH 7.5, 25 mM KCl, 15 mM MgCl2, 0.1 mM dithiothreitol, at 37°C
0.082
-
pH 5.5, 20°C
0.14
-
IC50 is 0.14 mM
0.07
-
IC50 is 0.070 mM
0.0004
-
at pH 6.5 and 30°C

References & Links

Links to other databases for Tannic acid

ChEBI
PubChem
-
PubChem