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Literature summary extracted from

  • Crueger, A.; Crueger, W.
    Carbohydrates (1984), Biotechnology (Kieslich, K. , ed. ) Verlag Chemie, Weinheim, 6A, 421-457.
No PubMed abstract available

Application

EC Number Application Comment Organism
3.2.1.22 nutrition beet sugar refining Umbelopsis vinacea
3.2.1.23 nutrition
-
Aspergillus oryzae
3.2.1.23 nutrition hydrolysis of whey ultrafiltrate from continous production of ethanol with Kluyveromyces sp. yields a sweet syrup which can be used as sweetener Kluyveromyces sp.
3.2.1.23 nutrition production of a sweetener for food industry by hydrolysis of lactose in permeate whey Saccharomyces cerevisiae
3.2.1.23 nutrition lactase entrapped in cellulose-triacetate fibers is originally used to produce low lactose milk Kluyveromyces lactis
3.2.1.23 nutrition conversion of cheese whey into a sweet protein-rich syrup which can be used in baked goods and ice cream Aspergillus niger

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.2.1.23 12 17 lactose
-
Kluyveromyces lactis
3.2.1.23 14
-
lactose
-
Kluyveromyces marxianus
3.2.1.23 50
-
lactose
-
Weizmannia coagulans
3.2.1.23 50
-
lactose
-
Aspergillus oryzae
3.2.1.23 85
-
lactose
-
Aspergillus niger
3.2.1.23 85
-
lactose
-
Aspergillus oryzae

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
3.2.1.22 extracellular
-
Streptomyces olivaceus
-
-

Organism

EC Number Organism UniProt Comment Textmining
3.2.1.22 Circinella muscae
-
-
-
3.2.1.22 Streptomyces olivaceus
-
-
-
3.2.1.22 Umbelopsis vinacea
-
-
-
3.2.1.23 Aspergillus niger
-
-
-
3.2.1.23 Aspergillus oryzae
-
-
-
3.2.1.23 Caldariella acidophila
-
-
-
3.2.1.23 Curvularia inaequalis
-
-
-
3.2.1.23 Escherichia coli
-
-
-
3.2.1.23 Fusarium verticillioides
-
-
-
3.2.1.23 Geobacillus stearothermophilus
-
-
-
3.2.1.23 Geobacillus stearothermophilus HRI
-
-
-
3.2.1.23 Kluyveromyces lactis
-
-
-
3.2.1.23 Kluyveromyces marxianus
-
-
-
3.2.1.23 Kluyveromyces sp.
-
-
-
3.2.1.23 Lactobacillus delbrueckii subsp. bulgaricus
-
-
-
3.2.1.23 Lactobacillus sp. 'thermophilus'
-
-
-
3.2.1.23 Leuconostoc citrovorum
-
-
-
3.2.1.23 Mycothermus thermophilus
-
-
-
3.2.1.23 Niallia circulans
-
-
-
3.2.1.23 Penicillium multicolor
-
-
-
3.2.1.23 Rhizomucor miehei
-
-
-
3.2.1.23 Rhizomucor pusillus
-
-
-
3.2.1.23 Saccharomyces anamensis
-
-
-
3.2.1.23 Saccharomyces cerevisiae
-
-
-
3.2.1.23 Sinorhizobium meliloti
-
-
-
3.2.1.23 Sporotrichum sp.
-
-
-
3.2.1.23 Streptomyces coelicolor
-
-
-
3.2.1.23 Thermomyces lanuginosus
-
-
-
3.2.1.23 Thermothelomyces heterothallicus
-
-
-
3.2.1.23 Trichocladium griseum
-
-
-
3.2.1.23 Umbelopsis vinacea
-
-
-
3.2.1.23 Weizmannia coagulans
-
-
-
3.2.1.23 Zygosaccharomyces lactis
-
-
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.2.1.22 mycelium
-
Circinella muscae
-
3.2.1.22 mycelium
-
Umbelopsis vinacea
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.2.1.22 2000
-
-
Umbelopsis vinacea

Storage Stability

EC Number Storage Stability Organism
3.2.1.22 -15°C, no decrease in activity Umbelopsis vinacea

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.2.1.22 melibiose + H2O
-
Umbelopsis vinacea D-galactose + D-glucose
-
?
3.2.1.22 raffinose + H2O
-
Umbelopsis vinacea sucrose + D-galactose
-
?
3.2.1.22 sucrose + H2O
-
Umbelopsis vinacea D-glucose + D-fructose
-
?
3.2.1.23 lactose + H2O
-
Escherichia coli D-glucose + D-galactose
-
?
3.2.1.23 lactose + H2O
-
Geobacillus stearothermophilus D-glucose + D-galactose
-
?
3.2.1.23 lactose + H2O
-
Aspergillus niger D-glucose + D-galactose
-
?
3.2.1.23 lactose + H2O
-
Weizmannia coagulans D-glucose + D-galactose
-
?
3.2.1.23 lactose + H2O
-
Niallia circulans D-glucose + D-galactose
-
?
3.2.1.23 lactose + H2O
-
Kluyveromyces marxianus D-glucose + D-galactose
-
?
3.2.1.23 lactose + H2O
-
Aspergillus oryzae D-glucose + D-galactose
-
?
3.2.1.23 lactose + H2O
-
Kluyveromyces lactis D-glucose + D-galactose
-
?
3.2.1.23 lactose + H2O
-
Penicillium multicolor D-glucose + D-galactose
-
?
3.2.1.23 lactose + H2O
-
Caldariella acidophila D-glucose + D-galactose
-
?
3.2.1.23 lactose + H2O
-
Geobacillus stearothermophilus HRI D-glucose + D-galactose
-
?

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
3.2.1.23 30 35
-
Kluyveromyces marxianus
3.2.1.23 30 35
-
Kluyveromyces lactis
3.2.1.23 35
-
-
Escherichia coli
3.2.1.23 55
-
-
Aspergillus niger
3.2.1.23 55
-
-
Weizmannia coagulans
3.2.1.23 55
-
-
Aspergillus oryzae

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
3.2.1.23 55
-
-
Escherichia coli
3.2.1.23 55
-
-
Aspergillus niger
3.2.1.23 55
-
-
Weizmannia coagulans
3.2.1.23 55
-
-
Niallia circulans
3.2.1.23 55
-
half-life: at least 1.5 h Geobacillus stearothermophilus
3.2.1.23 60
-
half-life: 1 h Geobacillus stearothermophilus
3.2.1.23 65
-
-
Aspergillus niger
3.2.1.23 65
-
half-life: 10 min Geobacillus stearothermophilus

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.2.1.23 3 4
-
Aspergillus niger
3.2.1.23 5
-
-
Aspergillus oryzae
3.2.1.23 5
-
-
Caldariella acidophila
3.2.1.23 6.5 7
-
Kluyveromyces lactis
3.2.1.23 6.6
-
-
Escherichia coli
3.2.1.23 6.6
-
-
Kluyveromyces marxianus
3.2.1.23 7.2
-
-
Escherichia coli

pH Stability

EC Number pH Stability pH Stability Maximum Comment Organism
3.2.1.23 2.5 7 stable Aspergillus oryzae
3.2.1.23 2.5 8 stable Aspergillus niger
3.2.1.23 6 8 stable Escherichia coli
3.2.1.23 6.5 7.5 stable Kluyveromyces marxianus
3.2.1.23 6.5 7.5 stable Kluyveromyces lactis