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Literature summary for 3.2.1.26 extracted from
- Comparative study of the properties of the purified internal and external invertases from yeast (1968), J. Biol. Chem., 243, 1573-1577.
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 25 | - |
sucrose | extracellular enzyme | Saccharomyces cerevisiae |  |
| 26 | - |
sucrose | extracellular enzyme | Saccharomyces cerevisiae | |
| 150 | - |
raffinose | extracellular and intracellular enzyme | Saccharomyces cerevisiae | |
Molecular Weight [Da]
| Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|
| 135000 | - |
intracellular enzyme | Saccharomyces cerevisiae |
| 270000 | - |
extracellular enzyme, gel filtration | Saccharomyces cerevisiae |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Saccharomyces cerevisiae | - |
extracellular invertase and intracellular invertase | - |
Posttranslational Modification
| Posttranslational Modification | Comment | Organism |
|---|---|---|
| glycoprotein | the intracellular enzyme contains little or no carbohydrate | Saccharomyces cerevisiae |
| glycoprotein | the extracellular enzyme contains 50% mannan and 3% glucosamine | Saccharomyces cerevisiae |
Specific Activity [micromol/min/mg]
| Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
|---|---|---|---|
| additional information | - |
- |
Saccharomyces cerevisiae |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| raffinose + H2O | - |
Saccharomyces cerevisiae | fructose + melibiose | - |
? | |
| sucrose + H2O | - |
Saccharomyces cerevisiae | D-fructose + D-glucose | - |
? | |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 3.5 | 5.5 | intracellular and extracellular enzyme | Saccharomyces cerevisiae |
pH Stability
| pH Stability | pH Stability Maximum | Comment | Organism |
|---|---|---|---|
| 3 | 7.5 | stable, extracellular enzyme | Saccharomyces cerevisiae |
| 6 | 9 | stable, intracellular enzyme | Saccharomyces cerevisiae |
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Release 2023.1 (January 2023)
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