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Literature summary for 3.2.1.20 extracted from

  • Yamasaki, Y.; Suzuki, Y.; Ozawa, J.
    Purification and properties of alpha-glucosidase from Penicillium purpurogenum (1976), Agric. Biol. Chem., 40, 669-676.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
Cu2+
-
Talaromyces purpureogenus
Hg2+
-
Talaromyces purpureogenus
KCl
-
Talaromyces purpureogenus
Mg2+ MgCl2 Talaromyces purpureogenus
Mn2+ MnCl2 Talaromyces purpureogenus
Ni2+ NiCl2 Talaromyces purpureogenus
Pb2+
-
Talaromyces purpureogenus
Tris
-
Talaromyces purpureogenus
turanose
-
Talaromyces purpureogenus
Zn2+
-
Talaromyces purpureogenus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.694
-
maltose
-
Talaromyces purpureogenus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
120000
-
x * 120000, SDS-PAGE Talaromyces purpureogenus

Organism

Organism UniProt Comment Textmining
Talaromyces purpureogenus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Talaromyces purpureogenus

Source Tissue

Source Tissue Comment Organism Textmining
mycelium
-
Talaromyces purpureogenus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
284.7
-
-
Talaromyces purpureogenus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
amylopectin + H2O
-
Talaromyces purpureogenus alpha-D-glucose
-
?
amylose + H2O
-
Talaromyces purpureogenus alpha-D-glucose
-
?
glycogen + H2O
-
Talaromyces purpureogenus alpha-D-glucose
-
?
maltose
-
Talaromyces purpureogenus maltotriose + ?
-
?
maltose + H2O
-
Talaromyces purpureogenus alpha-D-glucose + D-glucose
-
?
maltose + riboflavin
-
Talaromyces purpureogenus ?
-
?
phenyl alpha-maltoside + H2O
-
Talaromyces purpureogenus alpha-D-glucose + phenyl alpha-D-glucoside
-
?
starch + H2O
-
Talaromyces purpureogenus alpha-D-glucose
-
?

Subunits

Subunits Comment Organism
? x * 120000, SDS-PAGE Talaromyces purpureogenus

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
50
-
-
Talaromyces purpureogenus

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
20 60 20°C: about 25% of maximal activity, 60°C: about 20% of maximal activity Talaromyces purpureogenus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
37
-
pH 5.3, 15 min, stable up to Talaromyces purpureogenus
50
-
pH 5.3, 15 min, enzyme loses most of its activity Talaromyces purpureogenus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
3 5
-
Talaromyces purpureogenus

pH Range

pH Minimum pH Maximum Comment Organism
1 7 pH 1: about 35% of maximal activity, pH 7: about 30% of maximal activity Talaromyces purpureogenus

pH Stability

pH Stability pH Stability Maximum Comment Organism
5.5 7 30°C, 20 h, stable Talaromyces purpureogenus