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Literature summary for 3.2.1.23 extracted from

  • van Casteren, W.H.; Eimermann, M.; van den Broek, L.A.; Vincken, J.P.; Schols, H.A.; Voragen, A.G.
    Purification and characterisation of a beta-galactosidase from Aspergillus aculeatus with activity towards (modified) exopolysaccharides from Lactococcus lactis subsp. cremoris B39 and B891 (2000), Carbohydr. Res., 329, 75-85.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
D-galactose 10 mM, inhibits hydrolysis of p-nitrophenyl beta-D-galactopyranoside at substrate concentrations below 3 mM Aspergillus aculeatus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
110000
-
x * 110000, SDS-PAGE Aspergillus aculeatus
130000
-
gel filtration Aspergillus aculeatus

Organism

Organism UniProt Comment Textmining
Aspergillus aculeatus
-
-
-

Posttranslational Modification

Posttranslational Modification Comment Organism
glycoprotein
-
Aspergillus aculeatus

Purification (Commentary)

Purification (Comment) Organism
-
Aspergillus aculeatus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
exopolysaccharide + H2O modified exopolysaccharides produced by Lactococcus lactis subsp. cremonis B39 and B891 Aspergillus aculeatus beta-D-galactose + ?
-
?
lactose + H2O
-
Aspergillus aculeatus D-glucose + D-galactose
-
?
p-nitrophenyl beta-D-galactopyranoside + H2O
-
Aspergillus aculeatus p-nitrophenol + beta-D-galactose
-
?

Subunits

Subunits Comment Organism
? x * 110000, SDS-PAGE Aspergillus aculeatus

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
55 60 McIlvaine buffer Aspergillus aculeatus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.4
-
NaOAc buffer Aspergillus aculeatus

pI Value

Organism Comment pI Value Maximum pI Value
Aspergillus aculeatus isoelectric focusing, pH-gradient 4-6.5
-
4.9