Activating Compound | Comment | Organism | Structure |
---|---|---|---|
glucose-6-phosphate | SPS-I and SPS-II | Oryza sativa |
General Stability | Organism |
---|---|
SPS-I loses more activity during purification than SPS-II | Oryza sativa |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
phosphate | SPS-I shows high sensitivity towards phosphate, whereas SPS-II is only slightly sensitive | Oryza sativa |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
3.5 | - |
D-fructose 6-phosphate | SPS-I | Oryza sativa | |
3.6 | - |
UDP-glucose | SPS-I | Oryza sativa | |
4.1 | - |
D-fructose 6-phosphate | SPS-II | Oryza sativa | |
4.2 | - |
UDP-glucose | SPS-II | Oryza sativa |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
116000 | - |
SDS-PAGE, minor 88000 Da band detected, that is suggested to be a degradation product | Oryza sativa |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
UDP-alpha-D-glucose + D-fructose 6-phosphate | Oryza sativa | catalyzes the penultimate step of sucrose synthesis | UDP + sucrose 6-phosphate | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Oryza sativa | - |
- |
- |
Purification (Comment) | Organism |
---|---|
partial, two forms of the enzyme identified, SPS-I loses more activity during purification than SPS-II | Oryza sativa |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
leaf | - |
Oryza sativa | - |
seed | germinated | Oryza sativa | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
UDP-alpha-D-glucose + D-fructose 6-phosphate | - |
Oryza sativa | UDP + sucrose 6-phosphate | - |
? | |
UDP-alpha-D-glucose + D-fructose 6-phosphate | catalyzes the penultimate step of sucrose synthesis | Oryza sativa | UDP + sucrose 6-phosphate | - |
? |
Synonyms | Comment | Organism |
---|---|---|
More | two forms of enzyme identified, that differ in regulatory properties | Oryza sativa |