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Literature summary for 3.2.1.23 extracted from

  • Ulezlo, I.V.; Tsereteli, A.K.; Portnaya, I.B.; Bezborodov, A.M.
    beta-Galactosidase of the extreme thermophilic anaerobic bacterium Thermoanaerobium sp. 2905 and its immobilization (2001), Appl. Biochem. Microbiol., 37, 41-44.
No PubMed abstract available
Search for more literature for 3.2.1.23

Organism

Organism UniProt Comment Textmining
Thermoanaerobium sp.
-
-
-
Thermoanaerobium sp. 2905
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
 Thermoanaerobium sp.

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
lactose + H2O
-
 Thermoanaerobium sp. D-glucose + D-galactose
-
 ?
lactose + H2O
-
 Thermoanaerobium sp. 2905 D-glucose + D-galactose
-
 ?
p-nitrophenyl beta-D-galactopyranoside + H2O
-
 Thermoanaerobium sp. p-nitrophenol + beta-D-galactose
-
 ?
p-nitrophenyl beta-D-galactopyranoside + H2O
-
 Thermoanaerobium sp. 2905 p-nitrophenol + beta-D-galactose
-
 ?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
80
-
 hydrolysis of lactose or p-nitrophenyl beta-D-galactopyranoside Thermoanaerobium sp.

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
40 80 40°C: 50% of maximal activity, 80°C: optimum Thermoanaerobium sp.

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4.5 5 hydrolysis of lactose Thermoanaerobium sp.
6
-
 hydrolysis of p-nitrophenyl beta-D-galactopyranoside Thermoanaerobium sp.