Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary extracted from

  • Ohtsuka, K.; Tanoh, A.; Ozawa, O.; Kanematsu, T.; Uchida, T.; Shinke, R.
    Purification and properties of a beta-galactosidase with high galactosyl transfer activity from Cryptococcus laurentii OKN-4 (1990), J. Ferment. Bioeng., 70, 301-307.
No PubMed abstract available

Inhibitors

EC Number Inhibitors Comment Organism Structure
3.2.1.23 2-mercaptoethanol
-
Papiliotrema laurentii
3.2.1.23 Ag+
-
Papiliotrema laurentii
3.2.1.23 D-glucose
-
Papiliotrema laurentii
3.2.1.23 Hg2+
-
Papiliotrema laurentii
3.2.1.23 maltose
-
Papiliotrema laurentii
3.2.1.23 maltotriose
-
Papiliotrema laurentii

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.2.1.23 11.4
-
lactose
-
Papiliotrema laurentii
3.2.1.23 18.2
-
o-nitrophenyl-beta-D-galactoside
-
Papiliotrema laurentii

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
3.2.1.23 cell wall
-
Papiliotrema laurentii 5618
-

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.2.1.23 100000
-
2 * 100000, SDS-PAGE Papiliotrema laurentii
3.2.1.23 200000
-
gel filtration Papiliotrema laurentii

Organism

EC Number Organism UniProt Comment Textmining
3.2.1.23 Papiliotrema laurentii
-
-
-
3.2.1.23 Papiliotrema laurentii OKN-4
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
3.2.1.23
-
Papiliotrema laurentii

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.2.1.23 12.3
-
-
Papiliotrema laurentii

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.2.1.23 cellobiose + H2O
-
Papiliotrema laurentii 2 D-glucose
-
?
3.2.1.23 cellobiose + H2O
-
Papiliotrema laurentii OKN-4 2 D-glucose
-
?
3.2.1.23 lactitol + H2O
-
Papiliotrema laurentii D-galactose + D-glucitol
-
?
3.2.1.23 lactose transgalactosylation Papiliotrema laurentii additional information O-beta-D-galactopyranosyl-(1, 4)-o-beta-D-galactopyranosyl-(1, 4)-D-glucopyranose + lactose + galactodisaccharides + galactotrisaccharides + galactotetrasaccharides ?
3.2.1.23 lactose + H2O
-
Papiliotrema laurentii D-glucose + D-galactose
-
?
3.2.1.23 lactose + H2O
-
Papiliotrema laurentii OKN-4 D-glucose + D-galactose
-
?
3.2.1.23 lactulose + H2O
-
Papiliotrema laurentii D-galactose + D-fructose
-
?
3.2.1.23 lactulose + H2O
-
Papiliotrema laurentii OKN-4 D-galactose + D-fructose
-
?
3.2.1.23 o-nitrophenyl-beta-D-galactoside + H2O
-
Papiliotrema laurentii o-nitrophenol + beta-D-galactose
-
?
3.2.1.23 o-nitrophenyl-beta-D-galactoside + H2O
-
Papiliotrema laurentii OKN-4 o-nitrophenol + beta-D-galactose
-
?
3.2.1.23 p-nitrophenyl-beta-D-galactoside + H2O
-
Papiliotrema laurentii p-nitrophenol + beta-D-galactose
-
?
3.2.1.23 p-nitrophenyl-beta-D-galactoside + H2O
-
Papiliotrema laurentii OKN-4 p-nitrophenol + beta-D-galactose
-
?

Subunits

EC Number Subunits Comment Organism
3.2.1.23 dimer 2 * 100000, SDS-PAGE Papiliotrema laurentii

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
3.2.1.23 60
-
-
Papiliotrema laurentii

Temperature Range [°C]

EC Number Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
3.2.1.23 40 65 40°C: about 30% of maximal activity, 65°C: about 15% of maximal activity Papiliotrema laurentii

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
3.2.1.23 58
-
10 min, stable up to Papiliotrema laurentii
3.2.1.23 65
-
10 min, complete loss of activity Papiliotrema laurentii

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.2.1.23 4.3
-
-
Papiliotrema laurentii

pH Range

EC Number pH Minimum pH Maximum Comment Organism
3.2.1.23 2.3 6 pH 2.3: about 30% of maximal activity, pH 6.0: about 50% of maximal activity Papiliotrema laurentii

pH Stability

EC Number pH Stability pH Stability Maximum Comment Organism
3.2.1.23 2.9 9.3 30°C, 60 min, stable Papiliotrema laurentii