Inhibitors | Comment | Organism | Structure |
---|---|---|---|
Ca2+ | weak | Dioscorea cayenensis | |
EDTA | 10 mM, 88% inhibition | Dioscorea cayenensis | |
Hg2+ | 0.1 mM, complete inhibition | Dioscorea cayenensis | |
additional information | not inhibited by K+, Na+ | Dioscorea cayenensis | |
N-Acetylimidazole | glucose 1-phosphate prevents | Dioscorea cayenensis | |
p-hydroxymercuribenzoate | glucose 1-phosphate prevents | Dioscorea cayenensis | |
Zn2+ | 0.1 mM, complete inhibition; strong inhibition | Dioscorea cayenensis |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Dioscorea cayenensis | - |
- |
- |
Purification (Comment) | Organism |
---|---|
ammonium sulfate, DEAE-Sephadex, Sephadex G-100, Sepharose 6B | Dioscorea cayenensis |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
tuber | - |
Dioscorea cayenensis | - |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
20.75 | - |
- |
Dioscorea cayenensis |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
starch + glucose 1-phosphate | soluble starch | Dioscorea cayenensis | starch + phosphate | - |
r | |
[(1->4)-alpha-D-glucosyl]n + phosphate | no activity with glucose 6-phosphate, fructose 6-phosphate, and fructose 1,6-diphosphate | Dioscorea cayenensis | [(1->4)-alpha-D-glucosyl]n-1 + alpha-D-glucose 1-phosphate | - |
r | |
[(1->4)-alpha-D-glucosyl]n + phosphate | strict specificity for glucose 1-phosphate | Dioscorea cayenensis | [(1->4)-alpha-D-glucosyl]n-1 + alpha-D-glucose 1-phosphate | - |
r |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
45 | - |
- |
Dioscorea cayenensis |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
40 | - |
stable below | Dioscorea cayenensis |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
5.9 | 6.3 | - |
Dioscorea cayenensis |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
5.2 | 7.2 | approx. half-maximal activity at pH 5.2 and 7.2 | Dioscorea cayenensis |
pH Stability | pH Stability Maximum | Comment | Organism |
---|---|---|---|
5.5 | 7.5 | stable | Dioscorea cayenensis |