Inhibitors | Comment | Organism | Structure |
---|---|---|---|
EDTA | 20 mM, complete inhibition | Helicobacter pylori |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Mg2+ | required for activity, maximal activity at 8-16 mM, Km at 3 mM | Helicobacter pylori | |
Mn2+ | can replace Mg2+, Km at 2.5 mM | Helicobacter pylori | |
Zn2+ | slight activation at 4 mM, Km at 2 mM | Helicobacter pylori |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
phosphatidylethanolamine + H2O | Helicobacter pylori | low activity | diacylglycerol + ethanolamine phosphate | - |
? | |
sphingomyelin + H2O | Helicobacter pylori | - |
N-acylsphingosine + choline phosphate | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Helicobacter pylori | - |
- |
- |
Purification (Comment) | Organism |
---|---|
acid glycine, ammonium sulfate, CM Sepharose, Mono Q, Sephadex G-75 | Helicobacter pylori |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
0.014 | - |
- |
Helicobacter pylori |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
phosphatidylethanolamine + H2O | low activity | Helicobacter pylori | diacylglycerol + ethanolamine phosphate | - |
? | |
sphingomyelin + H2O | - |
Helicobacter pylori | N-acylsphingosine + choline phosphate | - |
? |
Synonyms | Comment | Organism |
---|---|---|
N-SMase | - |
Helicobacter pylori |
neutral sphingomyelinase | - |
Helicobacter pylori |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7.4 | - |
- |
Helicobacter pylori |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
6 | 8.5 | approx. 10% of maximal activity at pH 6.0 and pH 8.5, respectively | Helicobacter pylori |
Organism | Comment | pI Value Maximum | pI Value |
---|---|---|---|
Helicobacter pylori | isoelectric focusing | - |
7.15 |