Literature summary for 3.2.1.23 extracted from

Fernandes, S.; Geueke, B.; Delgado, O.; Coleman, J.; Hatti-Kaul, R.
beta-Galactosidase from a cold-adapted bacterium: purification, characterization and application for lactose hydrolysis (2002), Appl. Microbiol. Biotechnol., 58, 313-321.

Search for more literature for 3.2.1.23

General Stability

General Stability	Organism
the enzyme immobilized on Sepharose is more stable	Pseudomonas sp.

Inhibitors

Inhibitors	Comment	Organism	Structure
Ca2+	-	Pseudomonas sp.
Cu2+	-	Pseudomonas sp.
Hg2+	-	Pseudomonas sp.
Zn2+	-	Pseudomonas sp.

Metals/Ions

Metals/Ions	Comment	Organism	Structure
K+	activates	Pseudomonas sp.
Mg2+	activates	Pseudomonas sp.
Mn2+	activates	Pseudomonas sp.
Na+	activates	Pseudomonas sp.

Organism

Organism	UniProt	Comment	Textmining
Pseudomonas sp.	-	-	-

Purification (Commentary)

Purification (Comment)	Organism
-	Pseudomonas sp.

Substrates and Products (Substrate)

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

Temperature Optimum [°C]

Temperature Optimum [°C]	Temperature Optimum Maximum [°C]	Comment	Organism
26	-	hydrolysis of o-nitrophenyl beta-D-galactopyranoside	Pseudomonas sp.

Temperature Stability [°C]

Temperature Stability Minimum [°C]	Temperature Stability Maximum [°C]	Comment	Organism
30	-	sensitive to temperatures above	Pseudomonas sp.

pH Optimum

pH Optimum Minimum	pH Optimum Maximum	Comment	Organism
9	-	hydrolysis of o-nitrophenyl beta-D-galactopyranoside	Pseudomonas sp.

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Release 2023.1 (January 2023)