| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| 1D-myo-inositol 1,4,5-trisphosphate + H2O | Arabidopsis thaliana | - |
myo-inositol 1,4-bisphosphate + phosphate | - |
? |
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Arabidopsis thaliana | - |
ecotype Columbia | - |
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| leaf | - |
Arabidopsis thaliana | - |
| pollen | - |
Arabidopsis thaliana | - |
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| 1D-myo-inositol 1,4,5-trisphosphate + H2O | - |
Arabidopsis thaliana | myo-inositol 1,4-bisphosphate + phosphate | - |
? |
| Synonyms | Comment | Organism |
|---|---|---|
| 5PT | - |
Arabidopsis thaliana |
| 5PT12 | isoform | Arabidopsis thaliana |
| 5PT13 | isoform | Arabidopsis thaliana |
| inositol polyphosphate 5-phosphatase | - |
Arabidopsis thaliana |
| Organism | Comment | Expression |
|---|---|---|
| Arabidopsis thaliana | isoform 5PT12 is preferentially expressed in leaf and mature pollen grains at floral stages 12-14 | up |
| General Information | Comment | Organism |
|---|---|---|
| malfunction | the increase in the levels of 1D-myo-inositol 1,4,5-trisphosphate/Ca2+ caused by deficiency of inositol polyphosphate 5-phosphatases is sufficient to break pollen dormancy and to trigger early germination | Arabidopsis thaliana |
| physiological function | the enzyme is crucial for maintaining pollen dormancy | Arabidopsis thaliana |