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Literature summary for 2.4.1.1 extracted from
- Some properties of starch phosphorylase from cotyledons of germinating seeds of Voandzeia subterranea (1979), Biochim. Biophys. Acta, 567, 331-338.
Activating Compound
| Activating Compound | Comment | Organism | Structure |
|---|---|---|---|
| 5'-AMP | activation | Voandzeia subterranea |  |
| 5'-AMP | 4 mM, 38 and 51% activation in the presence of 2 and 8 mM glucose 1-phosphate | Voandzeia subterranea | |
| cAMP | activation | Voandzeia subterranea | |
| EDTA | 1 mM, 114% activation | Voandzeia subterranea | |
| pyruvate | stimulation | Voandzeia subterranea | |
Inhibitors
| Inhibitors | Comment | Organism | Structure |
|---|---|---|---|
| Zn2+ | 1 mM, 27% inhibition | Voandzeia subterranea | |
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| additional information | - |
additional information | kinetic data | Voandzeia subterranea | |
| 1.11 | - |
AMP | in the presence of 10 mM glucose 1-phosphate | Voandzeia subterranea | |
| 2.7 | - |
AMP | in the presence of 2 mM glucose 1-phosphate | Voandzeia subterranea | |
| 2.78 | - |
alpha-D-glucose 1-phosphate | in the presence of 5 mM AMP | Voandzeia subterranea | |
| 7.14 | - |
alpha-D-glucose 1-phosphate | in the presence of 0.5 mM AMP | Voandzeia subterranea | |
Metals/Ions
| Metals/Ions | Comment | Organism | Structure |
|---|---|---|---|
| Mg2+ | 1 mM, 59% activation | Voandzeia subterranea | |
| Mn2+ | activation | Voandzeia subterranea | |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Voandzeia subterranea | - |
Bamberra groundnut, var. Thouars. | - |
Purification (Commentary)
| Purification (Comment) | Organism |
|---|---|
| isozymes I and II | Voandzeia subterranea |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| soluble starch + alpha-D-glucose 1-phosphate | - |
Voandzeia subterranea | ? | - |
? | |
| [(1->4)-alpha-D-glucosyl]n + phosphate | - |
Voandzeia subterranea | [(1->4)-alpha-D-glucosyl]n-1 + alpha-D-glucose 1-phosphate | - |
r | |
Subunits
| Subunits | Comment | Organism |
|---|---|---|
| dimer | isozyme I | Voandzeia subterranea |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 5.5 | 5.6 | isozyme I | Voandzeia subterranea |
| 6.1 | 6.3 | isozyme II | Voandzeia subterranea |
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