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Literature summary for 3.2.1.20 extracted from

  • Rudick M.J.; Elbein, A.D.
    Glycoprotein enzymes secreted by Aspergillus fumigatus. Purification and properties of alpha-glucosidase (1974), Arch. Biochem. Biophys., 161, 281-290.
No PubMed abstract available

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.85
-
maltose
-
Aspergillus fumigatus

Localization

Localization Comment Organism GeneOntology No. Textmining
extracellular
-
Aspergillus fumigatus
-
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
63500
-
low speed equilibrium sedimentation Aspergillus fumigatus

Organism

Organism UniProt Comment Textmining
Aspergillus fumigatus
-
-
-

Posttranslational Modification

Posttranslational Modification Comment Organism
glycoprotein one mol of enzyme contains 55.1 mol of mannose, 3.2 mol of glucosamine and 5.4 mol of glucose. Mannose and glucosamine are covalently bound to the enzyme, Man(GlcNAc)2Asn linkage Aspergillus fumigatus

Purification (Commentary)

Purification (Comment) Organism
-
Aspergillus fumigatus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
maltose + H2O
-
Aspergillus fumigatus 2 alpha-D-glucose
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4.5
-
-
Aspergillus fumigatus

pH Range

pH Minimum pH Maximum Comment Organism
2.5 5.5 pH 2.5: about 65% of maximal activity, pH 5.5: about 30% of maximal activity Aspergillus fumigatus