KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
25.6 | - |
sucrose | isoforms EINV1, EIV2, EINV3, EINV4, pH 4.5, 25°C | Saccharomyces cerevisiae |
Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
extracellular | - |
Saccharomyces cerevisiae | - |
- |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Saccharomyces cerevisiae | - |
- |
- |
Purification (Comment) | Organism |
---|---|
external invertase isoforms EINV1, EINV2, EINV3 and EINV4 | Saccharomyces cerevisiae |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
1480 | - |
isoform EINV4, 25°C, pH 4.5 | Saccharomyces cerevisiae |
2410 | - |
isoform EINV2, 25°C, pH 4.5 | Saccharomyces cerevisiae |
2470 | - |
isoform EINV3, 25°C, pH 4.5 | Saccharomyces cerevisiae |
3160 | - |
isoform EINV1, 25°C, pH 4.5 | Saccharomyces cerevisiae |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
sucrose + H2O | - |
Saccharomyces cerevisiae | D-glucose + D-fructose | - |
? |
Synonyms | Comment | Organism |
---|---|---|
EINV1 | - |
Saccharomyces cerevisiae |
EINV2 | - |
Saccharomyces cerevisiae |
EINV3 | - |
Saccharomyces cerevisiae |
EINV4 | - |
Saccharomyces cerevisiae |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
60 | - |
10 min, 80% residual activity for isoform EINV1, 60% for isoform EINV2, 25% for isoform EINV3, 45% for isoform EINV4 | Saccharomyces cerevisiae |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
3.5 | 5 | isoforms EINV1, EIV2, EINV3, EINV4 | Saccharomyces cerevisiae |
Organism | Comment | pI Value Maximum | pI Value |
---|---|---|---|
Saccharomyces cerevisiae | isoform EINV4 | - |
3.8 |
Saccharomyces cerevisiae | isoform EINV3 | - |
4 |
Saccharomyces cerevisiae | isoform EINV2 | - |
4.2 |
Saccharomyces cerevisiae | isoform EINV1 | - |
4.4 |
General Information | Comment | Organism |
---|---|---|
metabolism | the isoforms EINV1, EINV2, EINV3 and EINV4 have the same molecular mass and catalytic properties such as Km for sucrose, pH optimum and temperature optimum, but they exhibit significant difference in pI values, thermal stability and chemical reactivity. The observed differences between isoforms arise from posttranslational modifications | Saccharomyces cerevisiae |