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Literature summary extracted from

  • Suzuki, Y.; Uchida, K.
    Multiple forms of alpha-glucosidase from pig duodenum (1985), Agric. Biol. Chem., 49, 1573-1581.
No PubMed abstract available

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.2.1.20 0.37
-
 maltotriose alpha-glucosidase IIa Sus scrofa
3.2.1.20 1.67
-
 maltotriose alpha-glucosidase IIa Sus scrofa
3.2.1.20 1.72
-
 amylose alpha-glucosidase IIa Sus scrofa
3.2.1.20 2.61
-
 maltotriose alpha-glucosidase IIb Sus scrofa
3.2.1.20 3.33
-
 maltose alpha-glucosidase IIb Sus scrofa
3.2.1.20 11.8
-
 amylose alpha-glucosidase IIb Sus scrofa

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.2.1.20 80000
-
 x * 80000, alpha-glucoamylase Ib and IIb, SDS-PAGE Sus scrofa
3.2.1.20 145000
-
 x * 145000, alpha-glucoamylase IIa, SDS-PAGE Sus scrofa
3.2.1.20 150000
-
 x * 150000, alpha-glucosidase Ia, SDS-PAGE Sus scrofa

Organism

EC Number Organism UniProt Comment Textmining
3.2.1.20 Sus scrofa
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
3.2.1.20 alpha-glucosidase Ia, Ib, IIa and IIb Sus scrofa

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.2.1.20 duodenum
-
 Sus scrofa
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.2.1.20 additional information
-
-
 Sus scrofa

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.2.1.20 amylose + H2O low activity with alpha-glucosidase Ia and IIa, only traces of activity with alpha-glucosidase Ib and IIb Sus scrofa alpha-D-glucose
-
 ?
3.2.1.20 kojibiose + H2O low activity with alpha-glucosidase Ia and IIa, only traces of activity with alpha-glucosidase Ib and IIb Sus scrofa alpha-D-glucose + D-glucose
-
 ?
3.2.1.20 maltose + H2O
-
 Sus scrofa alpha-D-glucose + D-glucose
-
 ?
3.2.1.20 maltotriose + H2O
-
 Sus scrofa maltose + D-glucose
-
 ?
3.2.1.20 nigerose + H2O
-
 Sus scrofa 2 alpha-D-glucose
-
 ?

Subunits

EC Number Subunits Comment Organism
3.2.1.20 ? x * 145000, alpha-glucoamylase IIa, SDS-PAGE Sus scrofa
3.2.1.20 ? x * 80000, alpha-glucoamylase Ib and IIb, SDS-PAGE Sus scrofa
3.2.1.20 ? x * 150000, alpha-glucosidase Ia, SDS-PAGE Sus scrofa

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
3.2.1.20 70
-
 glucoamylase Ib and IIb, stable up to Sus scrofa