Cloned (Comment) | Organism |
---|---|
expressed in Escherichia coli | Escherichia coli |
Protein Variants | Comment | Organism |
---|---|---|
H115A | kcat highly decreased, histidyl residue has an important catalytic role | Escherichia coli |
S162A | kcat increased, Ser162 not catalytically important | Escherichia coli |
W139F | kcat 10fold decreased | Escherichia coli |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
iodoacetamide | complete inactivation | Escherichia coli |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.059 | - |
acetyl-CoA | phenyl-beta-D-galactopyranoside | Escherichia coli | |
0.065 | - |
acetyl-CoA | p-nitrophenyl-beta-D-galactopyranoside | Escherichia coli | |
0.082 | - |
acetyl-CoA | o-nitrophenyl-beta-D-galactopyranoside | Escherichia coli | |
0.098 | - |
propionyl-CoA | p-nitrophenyl-beta-D-galactopyranoside | Escherichia coli | |
0.104 | - |
acetyl-CoA | p-nitrophenyl-beta-D-galactopyranoside | Escherichia coli | |
0.221 | - |
butyryl-CoA | p-nitrophenyl-beta-D-galactopyranoside | Escherichia coli | |
0.266 | - |
acetyl-CoA | p-nitrophenyl-beta-D-lactopyranoside | Escherichia coli | |
25.2 | - |
p-nitrophenyl-beta-D-galactopyranoside | acetyl donor: butyrylCoA | Escherichia coli | |
40.2 | - |
p-nitrophenyl-beta-D-galactopyranoside | acetyl donor: acetyl-CoA | Escherichia coli | |
45.6 | - |
p-nitrophenyl-beta-D-galactopyranoside | acetyl donor: propionyl-CoA | Escherichia coli | |
57.9 | - |
p-nitrophenyl-alpha-D-galactopyranoside | acetyl donor: acetyl-CoA | Escherichia coli | |
60.2 | - |
p-nitrophenyl-beta-D-galactopyranoside | acetyl donor: acetyl-CoA | Escherichia coli | |
63.4 | - |
p-nitrophenyl-beta-D-galactopyranoside | acetyl donor: acetyl-CoA | Escherichia coli | |
63.4 | - |
phenyl-beta-D-galactopyranoside | acetyl donor: acetyl-CoA | Escherichia coli | |
67.9 | - |
o-nitrophenyl-beta-D-galactopyranoside | acetyl donor: acetyl-CoA | Escherichia coli |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Escherichia coli | - |
- |
- |
Purification (Comment) | Organism |
---|---|
wild-type and mutant enzyme | Escherichia coli |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
4-nitrophenyl alpha-D-galactopyranoside + acetyl-CoA | - |
Escherichia coli | 4-nitrophenyl 6-O-acetyl-alpha-D-galactopyranoside + CoA | - |
? | |
acetyl-CoA + beta-D-phenylgalactoside | - |
Escherichia coli | CoA + 6-O-acetyl-beta-D-phenylgalactoside | - |
? | |
acetyl-CoA + o-nitrophenyl-beta-D-galactopyranoside | - |
Escherichia coli | CoA + o-nitrophenyl 6-O-acetyl-beta-D-galactoside | - |
? | |
acetyl-CoA + p-nitrophenyl-beta-D-galactopyranoside | - |
Escherichia coli | CoA + p-nitrophenyl 6-O-acetyl-beta-D-galactopyranoside | - |
? | |
acetyl-CoA + p-nitrophenyl-beta-D-glucopyranoside | - |
Escherichia coli | CoA + p-nitrophenyl 6-O-acetyl-beta-D-glucopyranoside | - |
? | |
acetyl-CoA + p-nitrophenyl-beta-D-lactopyranoside | - |
Escherichia coli | CoA + p-nitrophenyl 6-O-acetyl-beta-D-lactopyranoside | - |
? | |
butyryl-CoA + p-nitrophenyl-beta-D-galactopyranoside | - |
Escherichia coli | CoA + p-nitrophenyl 6-O-butyryl-beta-D-galactopyranoside | - |
? | |
additional information | enzyme catalyses transfer of an acetyl group from acetyl-CoA to the 6-hydroxyl group of a beta-D-galactoside | Escherichia coli | ? | - |
? | |
propionyl-CoA + p-nitrophenyl-beta-D-galactopyranoside | - |
Escherichia coli | CoA + p-nitrophenyl 6-O-propionyl-beta-D-galactopyranoside | - |
? |
Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.054 | - |
p-nitrophenyl-beta-D-galactopyranoside | acetyl donor: butyryl-CoA | Escherichia coli | |
1.42 | - |
4-nitrophenyl alpha-D-galactopyranoside | acetyl donor: acetyl-CoA | Escherichia coli | |
1.84 | - |
p-nitrophenyl-beta-D-glucopyranoside | acetyl donor: acetyl-CoA | Escherichia coli | |
1.84 | - |
p-nitrophenyl-beta-D-lactopyranoside | acetyl donor: acetyl-CoA | Escherichia coli | |
5.8 | - |
p-nitrophenyl-beta-D-galactopyranoside | acetyl donor: propionyl-CoA | Escherichia coli | |
8.9 | - |
o-nitrophenyl-beta-D-galactopyranoside | acetyl donor: acetyl-CoA | Escherichia coli | |
13 | - |
phenyl-beta-D-galactopyranoside | acetyl donor: acetyl-CoA | Escherichia coli | |
14.7 | - |
p-nitrophenyl-beta-D-galactopyranoside | acetyl donor: acetyl-CoA | Escherichia coli |