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1 - 1.4
2-amino-2-deoxy-D-galactopyranose
0.025 - 8.4
2-nitrophenyl 1-thio-beta-D-galactopyranoside
37.1
2-nitrophenyl-beta-D-galactopyranoside
pH 6.5, 30°C
0.002 - 10
2-phenylethyl 1-thio-beta-D-galactopyranoside
4
4-aminophenyl beta-D-thiogalactopyranoside
-
pH 6.5, 75°C
0.8
benzyl 3-deoxy-4-S-(beta-D-galactopyranosyl)-4-thio-beta-D-erythro-pentopyranoside
-
in sodium phosphate buffer (100 mM, pH 7.3, MgCl2 1.2 mM, beta-mercaptoethanol 100 mM)
0.032
benzyl 3-deoxy-4-S-(beta-D-galactopyranosyl)-4-thio-beta-D-threo-pentopyranoside
-
in sodium phosphate buffer (100 mM, pH 7.3, MgCl2 1.2 mM, beta-mercaptoethanol 100 mM)
96
beta-D-glucose
-
pH 6.5, 75°C
0.085 - 0.17
D-galactono-1,4-lactone
0.4 - 24
D-galactonolactone
0.0081 - 0.02
gamma-galactonolactone
49
glucose
Kerstingiella geocarpa
-
-
0.08 - 85
isopropyl-thio-beta-D-galactopyranoside
0.23 - 3.38
o-nitrophenyl-beta-D-galactoside
0.34 - 1
octyl-beta-thio-galactoside
4.3
p-nitrophenyl beta-D-fucoside
-
hydrolysis of 4-methylumbelliferyl beta-D-galactoside
0.7
p-nitrophenyl beta-D-galactopyranoside
-
hydrolysis of 4-methylumbellipheryl beta-D-galactoside
additional information
additional information
-
1
2-amino-2-deoxy-D-galactopyranose
wild type enzyme, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
1.3
2-amino-2-deoxy-D-galactopyranose
mutant enzyme H418E, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
1.4
2-amino-2-deoxy-D-galactopyranose
mutant enzyme H418N, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
0.025
2-nitrophenyl 1-thio-beta-D-galactopyranoside
wild type enzyme, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
4.2
2-nitrophenyl 1-thio-beta-D-galactopyranoside
mutant enzyme H418N, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
8.4
2-nitrophenyl 1-thio-beta-D-galactopyranoside
mutant enzyme H418E, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
0.002
2-phenylethyl 1-thio-beta-D-galactopyranoside
wild type enzyme, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
0.08
2-phenylethyl 1-thio-beta-D-galactopyranoside
mutant enzyme H418N, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
10
2-phenylethyl 1-thio-beta-D-galactopyranoside
mutant enzyme H418E, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
0.218
D-galactal
-
12
D-galactal
-
pH 6.5, 75°C
0.085
D-galactono-1,4-lactone
-
beta-galactosidase II
0.13
D-galactono-1,4-lactone
-
beta-galactosidase I
0.17
D-galactono-1,4-lactone
-
beta-galactosidase III
0.4
D-galactonolactone
mutant enzyme H418E, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
0.4
D-galactonolactone
mutant enzyme H418N, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
0.6
D-galactonolactone
native enzyme
0.64
D-galactonolactone
wild type enzyme, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
4.9
D-galactonolactone
mutant enzyme E416V
24
D-galactonolactone
mutant enzyme E416Q
0.76
D-galactose
wild-type, pH 5.5, 42°
3
D-galactose
-
at 70°C and pH 6.5, using 4-nitrophenyl-beta-D-galactopyranoside as substrate
3.3
D-galactose
mutant enzyme H418N, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
3.4
D-galactose
mutant enzyme H418E, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
3.7
D-galactose
-
pH 3.0-4.0, 30°C
6.46
D-galactose
mutant S259F/P261T/L262S/G263S, pH 5.5, 42°
11.4
D-galactose
-
beta-galactosidase I
12
D-galactose
-
at 80°C and pH 6.0
12
D-galactose
-
at pH 6.0 and 80°C
12
D-galactose
pH 6.0, 80°C, wild-type enzyme
13
D-galactose
-
beta-galactosidase III
15
D-galactose
-
beta-galactosidase II
21
D-galactose
wild type enzyme, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
24
D-galactose
native enzyme
45
D-galactose
-
at 25°C and pH 6.5, using 2-nitrophenyl-beta-D-galactopyranoside as substrate
70
D-galactose
pH 6.0, 80°C, mutant enzyme F349V
89
D-galactose
-
pH 6.5, 30°C, substrate: lactose, strain L461
89
D-galactose
-
at 30°C and pH 6.5, using lactose as substrate
90
D-galactose
-
at 37°C and pH 7.0, using lactose as substrate
115
D-galactose
-
pH 6.5, 30°C, substrate: o-nitrophenyl-beta-D-galactoside, strain L461
115
D-galactose
-
at 30°C and pH 6.5, using 2-nitrophenyl-beta-D-galactopyranoside as substrate
147
D-galactose
pH 6.0, 80°C, mutant enzyme F349L
156
D-galactose
pH 6.0, 80°C, mutant enzyme F349A
160
D-galactose
pH 6.0, 80°C, mutant enzyme F349S
188
D-galactose
-
pH 6.5, 30°C, substrate: lactose, strain L103
211
D-galactose
mutant enzyme E416V
220
D-galactose
mutant enzyme E416Q
251
D-galactose
-
immobilized enzyme, 2-nitrophenyl beta-D-galactoside, pH 6.5, 40°C
355
D-galactose
-
immobilized enzyme, substrate lactose, pH 6.5, 40°C
370
D-galactose
-
native enzyme, substrate 2-nitrophenyl beta-D-galactoside, pH 6.5, 40°C
420
D-galactose
-
native enzyme, substrate lactose, pH 6.5, 40°C
1.17
D-glucose
-
at 80°C and pH 6.0
50
D-glucose
-
at 70°C and pH 6.5, using 4-nitrophenyl-beta-D-galactopyranoside as substrate
58
D-glucose
-
immobilized enzyme, pH 6.5, 40°C
66
D-glucose
-
native enzyme, pH 6.5, 40°C
96
D-glucose
-
at 75°C and pH 6.5
683
D-glucose
-
pH 6.5, 30°C, substrate: o-nitrophenyl-beta-D-galactoside, strain L461
683
D-glucose
-
at 30°C and pH 6.5, using 2-nitrophenyl-beta-D-galactopyranoside as substrate
758
D-glucose
-
at 25°C and pH 6.5, using 2-nitrophenyl-beta-D-galactopyranoside as substrate
1170
D-glucose
-
at pH 6.0 and 80°C
2.7
galactose
-
pH 3.5, 37°C
26
galactose
Kerstingiella geocarpa
-
-
0.0081
gamma-galactonolactone
-
hydrolysis of 4-methylumbelliferyl beta-D-galactoside
0.02
gamma-galactonolactone
-
hydrolysis of p-nitrophenyl beta-D-galactoside
0.08
isopropyl-thio-beta-D-galactopyranoside
wild type enzyme, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
5
isopropyl-thio-beta-D-galactopyranoside
mutant enzyme H418N, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
85
isopropyl-thio-beta-D-galactopyranoside
mutant enzyme H418E, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
2 - 5
L-arabinose
mutant enzyme H418N, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
130
L-arabinose
mutant enzyme H418E, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
220
L-arabinose
wild type enzyme, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
0.28
L-ribose
wild type enzyme, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
0.68
L-ribose
mutant enzyme H418N, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
1.4
L-ribose
mutant enzyme H418E, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
0.9
lactose
wild type enzyme, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
5.1
lactose
mutant enzyme H418N, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
13
lactose
mutant enzyme H418E, in 30 mM TES buffer, 145 mM NaCl, 0.01 mM Mg2+, pH 7.0 at 25°C
59.5
lactose
Kerstingiella geocarpa
-
-
107
lactose
mutant enzyme E416V
154
lactose
mutant enzyme E416Q
260
lactose
-
hydrolysis of 4-methylumbelliferyl beta-D-galactoside
0.23
o-nitrophenyl-beta-D-galactoside
-
30°C, in 50 mM imidazole/HCl buffer containing 1 mM MgCl2, 145 mM NaCl and 4 mM dithiothreitol at pH 6.5
0.28
o-nitrophenyl-beta-D-galactoside
-
37°C, in 50 mM sodium acetate/acetic acid buffer at pH 4.5
0.3
o-nitrophenyl-beta-D-galactoside
-
30°C, solvent: 2-methyoxyethyl acetate, 50% v/v organic solvent-buffer mixture
0.3
o-nitrophenyl-beta-D-galactoside
-
30°C, solvent: acetone, 50% v/v organic solvent-buffer mixture
0.3
o-nitrophenyl-beta-D-galactoside
-
30°C, solvent: monoglyme, 50% v/v organic solvent-buffer mixture
0.3
o-nitrophenyl-beta-D-galactoside
-
30°C, solvent: triethyl phosphate, 50% v/v organic solvent-buffer mixture
0.3
o-nitrophenyl-beta-D-galactoside
-
37°C, in 50 mM imidazole/HCl buffer containing 1 mM MgCl2, 145 mM NaCl and 4 mM dithiothreitol at pH 7.0
0.35
o-nitrophenyl-beta-D-galactoside
-
30°C, solvent: triglyme, 50% v/v organic solvent-buffer mixture
0.4
o-nitrophenyl-beta-D-galactoside
-
37°C, solvent: 2-methyoxyethyl acetate, 50% v/v organic solvent-buffer mixture
0.42
o-nitrophenyl-beta-D-galactoside
-
30°C, solvent: acetonitrile, 50% v/v organic solvent-buffer mixture
0.58
o-nitrophenyl-beta-D-galactoside
-
30°C, solvent: diglyme, 50% v/v organic solvent-buffer mixture
0.59
o-nitrophenyl-beta-D-galactoside
-
30°C, solvent: trimethyl phosphate, 50% v/v organic solvent-buffer mixture
0.61
o-nitrophenyl-beta-D-galactoside
-
37°C, solvent: acetone, 50% v/v organic solvent-buffer mixture
0.81
o-nitrophenyl-beta-D-galactoside
-
37°C, solvent: acetonitrile, 50% v/v organic solvent-buffer mixture
0.83
o-nitrophenyl-beta-D-galactoside
-
37°C, solvent: trimethyl phosphate, 50% v/v organic solvent-buffer mixture
0.87
o-nitrophenyl-beta-D-galactoside
-
37°C, solvent: tetraglyme, 50% v/v organic solvent-buffer mixture
0.97
o-nitrophenyl-beta-D-galactoside
-
30°C, solvent: diethyleneglycol diethyl ether, 50% v/v organic solvent-buffer mixture
0.99
o-nitrophenyl-beta-D-galactoside
-
30°C, solvent: tetraglyme, 50% v/v organic solvent-buffer mixture
1.04
o-nitrophenyl-beta-D-galactoside
-
37°C, solvent: monoglyme, 50% v/v organic solvent-buffer mixture
1.09
o-nitrophenyl-beta-D-galactoside
-
37°C, solvent: diglyme, 50% v/v organic solvent-buffer mixture
1.21
o-nitrophenyl-beta-D-galactoside
-
37°C, solvent: acetonitrile, 50% v/v organic solvent-buffer mixture
1.38
o-nitrophenyl-beta-D-galactoside
-
37°C, solvent: acetone, 50% v/v organic solvent-buffer mixture
1.4
o-nitrophenyl-beta-D-galactoside
-
37°C, solvent: trimethyl phosphate, 50% v/v organic solvent-buffer mixture
1.44
o-nitrophenyl-beta-D-galactoside
-
37°C, solvent: diethyleneglycol diethyl ether, 50% v/v organic solvent-buffer mixture
1.55
o-nitrophenyl-beta-D-galactoside
-
37°C, solvent: diethyleneglycol diethyl ether, 50% v/v organic solvent-buffer mixture
1.64
o-nitrophenyl-beta-D-galactoside
-
37°C, solvent: triglyme, 50% v/v organic solvent-buffer mixture
1.67
o-nitrophenyl-beta-D-galactoside
-
37°C, solvent: tetraglyme, 50% v/v organic solvent-buffer mixture
1.71
o-nitrophenyl-beta-D-galactoside
-
37°C, solvent: diglyme, 50% v/v organic solvent-buffer mixture
1.76
o-nitrophenyl-beta-D-galactoside
-
37°C, solvent: monoglyme, 50% v/v organic solvent-buffer mixture
1.84
o-nitrophenyl-beta-D-galactoside
-
37°C, solvent: triethyl phosphate, 50% v/v organic solvent-buffer mixture
2.07
o-nitrophenyl-beta-D-galactoside
-
37°C, solvent: 2-methyoxyethyl acetate, 50% v/v organic solvent-buffer mixture
2.92
o-nitrophenyl-beta-D-galactoside
-
37°C, solvent: triethyl phosphate, 50% v/v organic solvent-buffer mixture
3.38
o-nitrophenyl-beta-D-galactoside
-
37°C, solvent: triglyme, 50% v/v organic solvent-buffer mixture
0.34
octyl-beta-thio-galactoside
-
hydrolysis of 4-methylumbelliferyl beta-D-galactoside
1
octyl-beta-thio-galactoside
-
hydrolysis of p-nitrophenyl beta-D-galactoside
additional information
additional information
-
-
-
additional information
additional information
-
detailed inhibition kinetics, overview
-
additional information
additional information
-
temperature dependence of inhibition kinetics of wild-type and mutant enzymes, overview
-