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Literature summary for 3.2.1.20 extracted from

  • Mehrani, H.; Storey, K.B.
    Characterization of alpha-glucosidases from rainbow trout liver (1993), Arch. Biochem. Biophys., 306, 188-194.
    View publication on PubMed
Search for more literature for 3.2.1.20

Localization

Localization Comment Organism GeneOntology No. Textmining
lysosome acid alpha-glucosidase I and II Oncorhynchus mykiss 5764
-
microsome neutral alpha-glucosidase Oncorhynchus mykiss
-
-

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+
-
 Oncorhynchus mykiss
K+ activates Oncorhynchus mykiss
Mg2+ activates Oncorhynchus mykiss
Na+ activates Oncorhynchus mykiss

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
130000
-
 acid alpha-glucosidase II, gel filtration Oncorhynchus mykiss
180000
-
 acid alpha-glucosidase I, gel filtration Oncorhynchus mykiss
365000
-
 neutral alpha-glucosidase, gel filtration Oncorhynchus mykiss

Organism

Organism UniProt Comment Textmining
Oncorhynchus mykiss
-
 3 alpha-glucosidase, acid type I, acid type II and neutral enzyme
-

Source Tissue

Source Tissue Comment Organism Textmining
liver
-
 Oncorhynchus mykiss
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-methylumbelliferyl-alpha-glucoside + H2O
-
 Oncorhynchus mykiss 4-methylumbelliferone + alpha-D-glucose
-
 ?
glycogen + H2O activity with acid alpha-glucosidase I and II, no activity with neutral alpha-glucosidase Oncorhynchus mykiss alpha-D-glucose
-
 ?
maltose + H2O
-
 Oncorhynchus mykiss alpha-D-glucose + D-glucose
-
 ?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4.5
-
 acid alpha-glucosidase I Oncorhynchus mykiss
5
-
 acid alpha-glucosidase II Oncorhynchus mykiss
6.5
-
 neutral alpha-glucosidase Oncorhynchus mykiss