KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.007 | - |
H+[side 1] | at pH 8.0 and 38°C | Kalanchoe daigremontiana | |
0.017 | - |
diphosphate | at pH 8.0 and 38°C | Kalanchoe daigremontiana |
Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
tonoplast | - |
Kalanchoe daigremontiana | - |
- |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
K+ | enzyme activity is maximal in the presence of K+ (K50 approximately 3 mM) | Kalanchoe daigremontiana | |
Mg2+ | the enzyme has a requirement for a Mg/diphosphate complex as substrate and free Mg2+ for activation. Half-maximal enzyme activity occurs at free 1.1 mM Mg2+ | Kalanchoe daigremontiana | |
Na+ | half-maximal activity at 12 mM Na+ | Kalanchoe daigremontiana |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
diphosphate + H2O + H+[side 1] | Kalanchoe daigremontiana | - |
2 phosphate + H+[side 2] | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Kalanchoe daigremontiana | - |
- |
- |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
leaf | - |
Kalanchoe daigremontiana | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
diphosphate + H2O + H+[side 1] | - |
Kalanchoe daigremontiana | 2 phosphate + H+[side 2] | - |
? |
Synonyms | Comment | Organism |
---|---|---|
tonoplast H+-PPiase | - |
Kalanchoe daigremontiana |
tonoplast H+-translocating inorganic pyrophosphatase | - |
Kalanchoe daigremontiana |
General Information | Comment | Organism |
---|---|---|
physiological function | the ancillary enzyme maintains the proton-motive force across the vacuolar membrane when the activity of the tonoplast H+-ATPase is restricted by substrate availability | Kalanchoe daigremontiana |