Literature summary extracted from
Dong, L.; Cheng, N.; Wang, M.W.; Zhang, J.; Shu, C.; Zhu, D.X.
The leucyl aminopeptidase from Helicobacter pylori is an allosteric enzyme (2005), Microbiology, 151, 2017-2023.
Application
EC Number |
Application |
Comment |
Organism |
---|
3.4.11.10 |
pharmacology |
the enzyme is a target for development of anti-Helicobacter pylori agents |
Helicobacter pylori |
Cloned(Commentary)
EC Number |
Cloned (Comment) |
Organism |
---|
3.4.11.10 |
gene LAP, DNA and amino acid sequence determination and analysis, functional expression of His-tagged enzyme in Escherichia coli |
Helicobacter pylori |
Inhibitors
EC Number |
Inhibitors |
Comment |
Organism |
Structure |
---|
3.4.11.10 |
bestatin |
inhibits the enzyme activity and cell growth |
Helicobacter pylori |
|
3.4.11.10 |
Ca2+ |
78% inhibition at 0.1 mM, 94% inhibition at 1 mM, 96% inhibition at 10 mM |
Helicobacter pylori |
|
3.4.11.10 |
EDTA |
97% inhibition at 0.1 mM |
Helicobacter pylori |
|
3.4.11.10 |
additional information |
no inhibition by PMSF |
Helicobacter pylori |
|
3.4.11.10 |
Zn2+ |
65% inhibition at 0.1 mM, 78% inhibition at 1 mM, 91% inhibition at 10 mM |
Helicobacter pylori |
|
Metals/Ions
EC Number |
Metals/Ions |
Comment |
Organism |
Structure |
---|
3.4.11.10 |
Co2+ |
highly activating, about 5fold at 1-10 mM |
Helicobacter pylori |
|
3.4.11.10 |
Mg2+ |
activates 2.9fold at 1 mM, 3.7fold at 10 mM |
Helicobacter pylori |
|
3.4.11.10 |
Mn2+ |
highly activating, 5.6fold at 1-10 mM |
Helicobacter pylori |
|
3.4.11.10 |
Ni2+ |
activates 3.5fold at 1 mM, 3.8fold at 10 mM |
Helicobacter pylori |
|
Molecular Weight [Da]
EC Number |
Molecular Weight [Da] |
Molecular Weight Maximum [Da] |
Comment |
Organism |
---|
3.4.11.10 |
55000 |
- |
6 * 55000, recombinant LAP, SDS-PAGE |
Helicobacter pylori |
3.4.11.10 |
340000 |
- |
recombinant enzyme, gel filtration |
Helicobacter pylori |
Organism
EC Number |
Organism |
UniProt |
Comment |
Textmining |
---|
3.4.11.10 |
Helicobacter pylori |
- |
gene LAP |
- |
Substrates and Products (Substrate)
EC Number |
Substrates |
Comment Substrates |
Organism |
Products |
Comment (Products) |
Rev. |
Reac. |
---|
3.4.11.10 |
L-Leu-4-nitroanilide + H2O |
- |
Helicobacter pylori |
L-Leu + 4-nitroaniline |
- |
? |
|
Subunits
EC Number |
Subunits |
Comment |
Organism |
---|
3.4.11.10 |
hexamer |
6 * 55000, recombinant LAP, SDS-PAGE |
Helicobacter pylori |
3.4.11.10 |
More |
the monomeric enzyme is probably not active |
Helicobacter pylori |
Synonyms
EC Number |
Synonyms |
Comment |
Organism |
---|
3.4.11.10 |
LAP |
- |
Helicobacter pylori |
3.4.11.10 |
Leucyl aminopeptidase |
- |
Helicobacter pylori |
Temperature Optimum [°C]
EC Number |
Temperature Optimum [°C] |
Temperature Optimum Maximum [°C] |
Comment |
Organism |
---|
3.4.11.10 |
45 |
- |
recombinant LAP |
Helicobacter pylori |
Temperature Range [°C]
EC Number |
Temperature Minimum [°C] |
Temperature Maximum [°C] |
Comment |
Organism |
---|
3.4.11.10 |
15 |
100 |
temperature profile, about 60% of maximal activity at 15°C and 100°C, recombinant enzyme |
Helicobacter pylori |
pH Optimum
EC Number |
pH Optimum Minimum |
pH Optimum Maximum |
Comment |
Organism |
---|
3.4.11.10 |
8 |
- |
recombinant LAP |
Helicobacter pylori |
pH Range
EC Number |
pH Minimum |
pH Maximum |
Comment |
Organism |
---|
3.4.11.10 |
5.5 |
10 |
pH profile, about 40% of maximal activity at pH 5.5 and pH 10.0, rapid decline of activity at pH 5.0, recombinant enzyme |
Helicobacter pylori |