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Literature summary for 5.3.1.8 extracted from
- Studies on the phosphomannose isomerase of Amorphophallus konjac C. Koch. I. Its isolation and some enzymic properties (1975), Plant Cell Physiol., 16, 953-961.
No PubMed abstract available
Inhibitors
| Inhibitors | Comment | Organism | Structure |
|---|---|---|---|
| 1,10-phenanthroline | - |
Amorphophallus konjac |  |
| 2,2'-dipyridyl | - |
Amorphophallus konjac | |
| EDTA | - |
Amorphophallus konjac | |
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 0.73 | - |
mannose 6-phosphate | - |
Amorphophallus konjac | |
Molecular Weight [Da]
| Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|
| 45000 | - |
gel filtration | Amorphophallus konjac |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Amorphophallus konjac | - |
- |
- |
Purification (Commentary)
| Purification (Comment) | Organism |
|---|---|
- |
Amorphophallus konjac |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| corm | - |
Amorphophallus konjac | - |
Specific Activity [micromol/min/mg]
| Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
|---|---|---|---|
| 5.95 | - |
- |
Amorphophallus konjac |
Storage Stability
| Storage Stability | Organism |
|---|---|
| -20°C, unstable | Amorphophallus konjac |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| D-Mannose 6-phosphate | - |
Amorphophallus konjac | D-Fructose 6-phosphate | - |
? | |
Temperature Stability [°C]
| Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 40 | - |
pH 5.5, 1 h, about 35% loss of activity | Amorphophallus konjac |
| 40 | - |
pH 10, about 25% loss of activity | Amorphophallus konjac |
| 40 | - |
pH 6.0-9.5, 1 h, no loss of activity | Amorphophallus konjac |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 6.5 | 7 | - |
Amorphophallus konjac |
pH Range
| pH Minimum | pH Maximum | Comment | Organism |
|---|---|---|---|
| 5.5 | 9 | about 50% of maximal activity at pH 5.5 and pH 9.0 | Amorphophallus konjac |
pH Stability
| pH Stability | pH Stability Maximum | Comment | Organism |
|---|---|---|---|
| 5.5 | - |
40°C, 1 h, about 35% loss of activity | Amorphophallus konjac |
| 6 | 9.5 | 40°C, 1 h, no loss of activity | Amorphophallus konjac |
| 10 | - |
40°C, 1 h, about 25% loss of activity | Amorphophallus konjac |
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