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Literature summary for 3.2.1.23 extracted from

  • Butler, J.A.; Hunter, G.D.
    Stimulation by ribonucleic acid of induced beta-galactosidase formation in Bacillus megaterium (1956), Biochim. Biophys. Acta, 20, 405-406.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
additional information the enzyme is 30fold induced by 0.5% lactose, without induction a small basal amount of enzyme activity is present in the cells Priestia megaterium

Cloned(Commentary)

Cloned (Comment) Organism
quantitative expression analysis Priestia megaterium

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
lactose + H2O Priestia megaterium
-
beta-D-glucose + beta-D-galactose
-
?
lactose + H2O Priestia megaterium KM / ATCC 13632
-
beta-D-glucose + beta-D-galactose
-
?

Organism

Organism UniProt Comment Textmining
Priestia megaterium
-
inducible enzyme
-
Priestia megaterium KM / ATCC 13632
-
inducible enzyme
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2-nitrophenyl beta-D-galactopyranoside + H2O
-
Priestia megaterium 2-nitrophenol + beta-D-galactose
-
?
2-nitrophenyl beta-D-galactopyranoside + H2O
-
Priestia megaterium KM / ATCC 13632 2-nitrophenol + beta-D-galactose
-
?
lactose + H2O
-
Priestia megaterium beta-D-glucose + beta-D-galactose
-
?
lactose + H2O
-
Priestia megaterium KM / ATCC 13632 beta-D-glucose + beta-D-galactose
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
30
-
assay at Priestia megaterium

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.1
-
assay at Priestia megaterium