EC Number | General Stability | Organism |
---|---|---|
3.2.1.23 | 4 M urea, irreversible inactivation | Escherichia coli |
EC Number | Inhibitors | Comment | Organism | Structure |
---|---|---|---|---|
3.2.1.23 | Ag+ | - |
Aspergillus oryzae | |
3.2.1.23 | Ag+ | - |
Escherichia coli | |
3.2.1.23 | Cd2+ | - |
Escherichia coli | |
3.2.1.23 | Cu2+ | - |
Aspergillus oryzae | |
3.2.1.23 | Cu2+ | - |
Escherichia coli | |
3.2.1.23 | Cu2+ | - |
Saccharomyces fragilis | |
3.2.1.23 | Hg2+ | - |
Aspergillus oryzae | |
3.2.1.23 | Hg2+ | - |
Escherichia coli | |
3.2.1.23 | Hg2+ | - |
Felis catus | |
3.2.1.23 | Hg2+ | - |
Medicago sativa | |
3.2.1.23 | Hg2+ | - |
Saccharomyces fragilis | |
3.2.1.23 | Pb2+ | - |
Escherichia coli | |
3.2.1.23 | PCMB | - |
Escherichia coli | |
3.2.1.23 | Zn2+ | - |
Escherichia coli |
EC Number | KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|---|
3.2.1.23 | additional information | - |
additional information | - |
Homo sapiens | |
3.2.1.23 | additional information | - |
additional information | influence of temperature on Km-value of o-nitrophenyl-beta-D-galactoside | Escherichia coli | |
3.2.1.23 | 0.0513 | - |
p-nitrophenyl-beta-D-galactoside | with 0.05 M NaCl | Escherichia coli | |
3.2.1.23 | 0.12 | - |
thio-(o-nitrophenyl)-beta-D-galactoside | - |
Escherichia coli | |
3.2.1.23 | 0.161 | - |
o-nitrophenyl-beta-D-galactoside | with 0.05 M NaCl | Escherichia coli | |
3.2.1.23 | 0.445 | - |
p-nitrophenyl-beta-D-galactoside | without NaCl | Escherichia coli | |
3.2.1.23 | 0.95 | - |
o-nitrophenyl-beta-D-galactoside | without NaCl | Escherichia coli | |
3.2.1.23 | 1.47 | - |
phenyl-beta-D-galactoside | with 0.05 M NaCl | Escherichia coli | |
3.2.1.23 | 1.9 | - |
alpha-lactose | with 0.05 M NaCl | Escherichia coli | |
3.2.1.23 | 2.5 | - |
methyl salicylate beta-D-galactoside | - |
Escherichia coli | |
3.2.1.23 | 3.23 | - |
phenyl-beta-D-galactoside | without NaCl | Escherichia coli | |
3.2.1.23 | 7.52 | - |
alpha-lactose | without NaCl | Escherichia coli | |
3.2.1.23 | 8.3 | - |
allolactose | without NaCl | Escherichia coli |
EC Number | Metals/Ions | Comment | Organism | Structure |
---|---|---|---|---|
3.2.1.23 | K+ | - |
Medicago sativa | |
3.2.1.23 | K+ | - |
Saccharomyces fragilis | |
3.2.1.23 | K+ | activates hydrolysis of lactose more effectively than Na+ | Escherichia coli | |
3.2.1.23 | Mg2+ | - |
Medicago sativa | |
3.2.1.23 | Mg2+ | - |
Saccharomyces fragilis | |
3.2.1.23 | Mg2+ | strain ML 308 shows absolute requirement, strain ML 309 does not | Escherichia coli | |
3.2.1.23 | Na+ | - |
Medicago sativa | |
3.2.1.23 | Na+ | - |
Felis catus | |
3.2.1.23 | Na+ | activates hydrolysis of o-nitrophenyl-beta-D-galactoside more effectively than K+ | Escherichia coli |
EC Number | Organism | UniProt | Comment | Textmining |
---|---|---|---|---|
3.2.1.23 | Aspergillus flavus | - |
- |
- |
3.2.1.23 | Aspergillus niger | - |
- |
- |
3.2.1.23 | Aspergillus oryzae | - |
- |
- |
3.2.1.23 | Bos taurus | - |
- |
- |
3.2.1.23 | Canis lupus familiaris | - |
- |
- |
3.2.1.23 | Capra hircus | - |
- |
- |
3.2.1.23 | Coffea sp. | - |
coffee | - |
3.2.1.23 | Escherichia coli | - |
- |
- |
3.2.1.23 | Escherichia coli K 12 | - |
- |
- |
3.2.1.23 | Escherichia coli ML 308 | - |
- |
- |
3.2.1.23 | Escherichia coli ML 309 | - |
- |
- |
3.2.1.23 | Felis catus | - |
- |
- |
3.2.1.23 | Helix pomatia | - |
- |
- |
3.2.1.23 | Homo sapiens | - |
- |
- |
3.2.1.23 | Klebsiella aerogenes | - |
- |
- |
3.2.1.23 | Malus sp. | - |
- |
- |
3.2.1.23 | Medicago sativa | - |
- |
- |
3.2.1.23 | Neurospora sp. | - |
- |
- |
3.2.1.23 | Oryctolagus cuniculus | - |
- |
- |
3.2.1.23 | Ovis aries | - |
- |
- |
3.2.1.23 | Prunus armeniaca | - |
- |
- |
3.2.1.23 | Prunus dulcis | - |
almond | - |
3.2.1.23 | Prunus persica | - |
- |
- |
3.2.1.23 | Saccharomyces fragilis | - |
- |
- |
3.2.1.23 | Shigella sonnei | - |
- |
- |
EC Number | Reaction | Comment | Organism | Reaction ID |
---|---|---|---|---|
3.2.1.23 | beta-D-galactopyranosyl-(1-4)-beta-D-galactopyranosyl-(1-6)-beta-D-galactopyranosyl-(1-3)-beta-D-galactopyranose + 3 H2O = 4 beta-D-galactopyranose | mechanism | Escherichia coli |
EC Number | Source Tissue | Comment | Organism | Textmining |
---|---|---|---|---|
3.2.1.23 | intestinal juice | - |
Homo sapiens | - |
3.2.1.23 | intestine | - |
Homo sapiens | - |
3.2.1.23 | intestine | mucous membrane | Bos taurus | - |
3.2.1.23 | mammary gland | - |
Bos taurus | - |
3.2.1.23 | mammary gland | - |
Felis catus | - |
3.2.1.23 | mammary gland | - |
Capra hircus | - |
3.2.1.23 | saliva | - |
Homo sapiens | - |
EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
3.2.1.23 | allolactose + H2O | - |
Escherichia coli | D-galactose + D-glucose | - |
? | |
3.2.1.23 | allolactose + H2O | - |
Escherichia coli K 12 | D-galactose + D-glucose | - |
? | |
3.2.1.23 | allolactose + H2O | - |
Escherichia coli ML 308 | D-galactose + D-glucose | - |
? | |
3.2.1.23 | allolactose + H2O | - |
Escherichia coli ML 309 | D-galactose + D-glucose | - |
? | |
3.2.1.23 | alpha-lactose + H2O | - |
Escherichia coli | D-galactose + D-glucose | - |
? | |
3.2.1.23 | lactose + H2O | - |
Homo sapiens | D-glucose + D-galactose | - |
? | |
3.2.1.23 | lactose + H2O | - |
Aspergillus niger | D-glucose + D-galactose | - |
? | |
3.2.1.23 | lactose + H2O | - |
Aspergillus oryzae | D-glucose + D-galactose | - |
? | |
3.2.1.23 | lactose + H2O | alpha-lactose | Escherichia coli | D-glucose + D-galactose | - |
? | |
3.2.1.23 | lactose + H2O | alpha-lactose | Escherichia coli K 12 | D-glucose + D-galactose | - |
? | |
3.2.1.23 | lactose + H2O | alpha-lactose | Escherichia coli ML 308 | D-glucose + D-galactose | - |
? | |
3.2.1.23 | lactose + H2O | alpha-lactose | Escherichia coli ML 309 | D-glucose + D-galactose | - |
? | |
3.2.1.23 | methyl salicylate beta-D-galactoside + H2O | - |
Escherichia coli | methyl salicylate + beta-D-galactose | - |
? | |
3.2.1.23 | o-nitrophenyl-beta-D-galactoside + H2O | - |
Escherichia coli | o-nitrophenol + beta-D-galactose | - |
? | |
3.2.1.23 | o-nitrophenyl-beta-D-galactoside + H2O | - |
Homo sapiens | o-nitrophenol + beta-D-galactose | - |
? | |
3.2.1.23 | o-nitrophenyl-beta-D-galactoside + H2O | - |
Bos taurus | o-nitrophenol + beta-D-galactose | - |
? | |
3.2.1.23 | o-nitrophenyl-beta-D-galactoside + H2O | - |
Aspergillus niger | o-nitrophenol + beta-D-galactose | - |
? | |
3.2.1.23 | o-nitrophenyl-beta-D-galactoside + H2O | - |
Medicago sativa | o-nitrophenol + beta-D-galactose | - |
? | |
3.2.1.23 | o-nitrophenyl-beta-D-galactoside + H2O | - |
Saccharomyces fragilis | o-nitrophenol + beta-D-galactose | - |
? | |
3.2.1.23 | o-nitrophenyl-beta-D-galactoside + H2O | - |
Aspergillus oryzae | o-nitrophenol + beta-D-galactose | - |
? | |
3.2.1.23 | o-nitrophenyl-beta-D-galactoside + H2O | - |
Escherichia coli K 12 | o-nitrophenol + beta-D-galactose | - |
? | |
3.2.1.23 | o-nitrophenyl-beta-D-galactoside + H2O | - |
Escherichia coli ML 308 | o-nitrophenol + beta-D-galactose | - |
? | |
3.2.1.23 | o-nitrophenyl-beta-D-galactoside + H2O | - |
Escherichia coli ML 309 | o-nitrophenol + beta-D-galactose | - |
? | |
3.2.1.23 | p-nitrophenyl-beta-D-galactoside + H2O | - |
Escherichia coli | p-nitrophenol + beta-D-galactose | - |
? | |
3.2.1.23 | p-nitrophenyl-beta-D-galactoside + H2O | - |
Homo sapiens | p-nitrophenol + beta-D-galactose | - |
? | |
3.2.1.23 | p-nitrophenyl-beta-D-galactoside + H2O | - |
Bos taurus | p-nitrophenol + beta-D-galactose | - |
? | |
3.2.1.23 | p-nitrophenyl-beta-D-galactoside + H2O | - |
Aspergillus niger | p-nitrophenol + beta-D-galactose | - |
? | |
3.2.1.23 | p-nitrophenyl-beta-D-galactoside + H2O | - |
Felis catus | p-nitrophenol + beta-D-galactose | - |
? | |
3.2.1.23 | p-nitrophenyl-beta-D-galactoside + H2O | - |
Escherichia coli K 12 | p-nitrophenol + beta-D-galactose | - |
? | |
3.2.1.23 | p-nitrophenyl-beta-D-galactoside + H2O | - |
Escherichia coli ML 308 | p-nitrophenol + beta-D-galactose | - |
? | |
3.2.1.23 | p-nitrophenyl-beta-D-galactoside + H2O | - |
Escherichia coli ML 309 | p-nitrophenol + beta-D-galactose | - |
? | |
3.2.1.23 | phenyl-beta-D-galactoside + H2O | - |
Escherichia coli | phenol + beta-D-galactose | - |
? | |
3.2.1.23 | phenyl-beta-D-galactoside + H2O | - |
Escherichia coli K 12 | phenol + beta-D-galactose | - |
? | |
3.2.1.23 | phenyl-beta-D-galactoside + H2O | - |
Escherichia coli ML 308 | phenol + beta-D-galactose | - |
? | |
3.2.1.23 | phenyl-beta-D-galactoside + H2O | - |
Escherichia coli ML 309 | phenol + beta-D-galactose | - |
? | |
3.2.1.23 | thio-(o-nitrophenyl)-beta-D-galactoside + H2O | - |
Escherichia coli | thio-(o-nitrophenol) + beta-D-galactose | - |
? |
EC Number | pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|---|
3.2.1.23 | 6.6 | - |
in presence of 0.05 M NaCl, strain ML 309 | Escherichia coli |
3.2.1.23 | 7.2 | 7.3 | 30°C, phosphate buffer, strain K-12 | Escherichia coli |
3.2.1.23 | 7.7 | - |
20°C, 0.05 M Tris-acetate buffer, strain ML 309 | Escherichia coli |