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Literature summary for 3.2.1.20 extracted from

  • Tadera, K.; Minami, Y.; Takamatsu, K.; Matsuoka, T.
    Inhibition of alpha-glucosidase and alpha-amylase by flavonoids (2006), J. Nutr. Sci. Vitaminol., 52, 149-153.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
apigenin
-
Saccharomyces cerevisiae
baicalein 16% inhibition at 0.5 mM Rattus norvegicus
baicalein
-
Saccharomyces cerevisiae
catechin
-
Saccharomyces cerevisiae
cyanidin 6% inhibition at 0.5 mM Rattus norvegicus
cyanidin
-
Saccharomyces cerevisiae
daidzein mixed type Saccharomyces cerevisiae
epicatechin 5% inhibition at 0.5 mM Rattus norvegicus
epicatechin
-
Saccharomyces cerevisiae
epigallocatechin 7% inhibition at 0.5 mM Rattus norvegicus
epigallocatechin
-
Saccharomyces cerevisiae
epigallocatechin gallate 32% inhibition at 0.5 mM Rattus norvegicus
epigallocatechin gallate mixed type, nearly noncompetitive inhibition Saccharomyces cerevisiae
fisetin 26% inhibition at 0.5 mM Rattus norvegicus
fisetin
-
Saccharomyces cerevisiae
genistein mixed type Saccharomyces cerevisiae
hesperetin
-
Saccharomyces cerevisiae
kaempferol 8% inhibition at 0.5 mM Rattus norvegicus
kaempferol
-
Saccharomyces cerevisiae
luteolin 19% inhibition at 0.5 mM Rattus norvegicus
luteolin mixed type, nearly noncompetitive inhibition Saccharomyces cerevisiae
additional information no inhibition by daidzein, catechin, apigenin, hesperetin, naringenin, and genistein at 0.5 mM Rattus norvegicus
myricetin 29% inhibition at 0.5 mM Rattus norvegicus
myricetin mixed type, nearly noncompetitive inhibition Saccharomyces cerevisiae
naringenin mixed type, nearly noncompetitive inhibition Saccharomyces cerevisiae
quercetin 28% inhibition at 0.5 mM Rattus norvegicus
quercetin mixed type, nearly noncompetitive inhibition Saccharomyces cerevisiae

Organism

Organism UniProt Comment Textmining
Rattus norvegicus
-
-
-
Saccharomyces cerevisiae
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
commercial preparation
-
Saccharomyces cerevisiae
-
small intestine
-
Rattus norvegicus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-nitrophenyl alpha-D-glucopyranoside + H2O
-
Saccharomyces cerevisiae 4-nitrophenol + alpha-D-glucose
-
?
maltose + H2O
-
Rattus norvegicus alpha-D-glucose + D-glucose
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
30
-
assay at Saccharomyces cerevisiae
37
-
assay at Rattus norvegicus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6
-
assay at Rattus norvegicus
6.8
-
assay at Saccharomyces cerevisiae

IC50 Value

IC50 Value IC50 Value Maximum Comment Organism Inhibitor Structure
0.002
-
pH 6.8, 30°C Saccharomyces cerevisiae epigallocatechin gallate
0.004
-
pH 6.8, 30°C Saccharomyces cerevisiae cyanidin
0.005
-
pH 6.8, 30°C Saccharomyces cerevisiae myricetin
0.007
-
pH 6.8, 30°C Saccharomyces cerevisiae quercetin
0.007
-
pH 6.8, 30°C Saccharomyces cerevisiae genistein
0.012
-
pH 6.8, 30°C Saccharomyces cerevisiae kaempferol
0.013
-
pH 6.8, 30°C Saccharomyces cerevisiae fisetin
0.014
-
pH 6.8, 30°C Saccharomyces cerevisiae daidzein
0.021
-
pH 6.8, 30°C Saccharomyces cerevisiae luteolin
0.075
-
pH 6.8, 30°C Saccharomyces cerevisiae naringenin
0.075
-
pH 6.8, 30°C Saccharomyces cerevisiae epigallocatechin
0.15
-
pH 6.8, 30°C Saccharomyces cerevisiae hesperetin
0.2
-
above, pH 6.8, 30°C Saccharomyces cerevisiae apigenin
0.2
-
above, pH 6.8, 30°C Saccharomyces cerevisiae baicalein
0.2
-
above, pH 6.8, 30°C Saccharomyces cerevisiae epicatechin
0.2
-
above, pH 6.8, 30°C Saccharomyces cerevisiae catechin