EC Number   |
Natural Substrates |
|---|
   2.7.1.158 | ATP + 1D-myo-inositol 1,3,4,5,6-pentakisphosphate |
- |
| 2.7.1.158 | more |
capable to catalyze the phosphorylation of myo-inositol 1,4,5,6-tetrakisphosphate (relative substrate specificity 76.8%), and myo-inositol 3,4,5,6-tetrakisphosphate (relative substrate specificity 32.6%) |
| 2.7.1.158 | ATP + 1D-myo-inositol 1,3,4,5,6-pentakisphosphate |
cytoplasmic production of 1D-myo-inositol hexakisphosphate is sufficient for mediating the Gle1-mRNA export pathway |
| 2.7.1.158 | 1D-myo-inositol 1,3,4,5,6-pentakisphosphate + ATP |
intermediate in both lipid-dependent and lipid-independent phytic acid biosynthetic pathways |
| 2.7.1.158 | ATP + 1D-myo-inositol 1,3,4,5,6-pentakisphosphate |
it is suggested that the enzyme is necessary for yolk sac development or function. Loss of inositol 1,3,4,5,6-pentakisphosphate 2-kinase is lethal |
| 2.7.1.158 | more |
loss of the 2-kinase is lethal |
| 2.7.1.158 | ATP + 1D-myo-inositol 1,3,4,5,6-pentakisphosphate |
rate-determining step in production of 1D-myo-inositol hexakisphosphate |
| 2.7.1.158 | 1D-myo-inositol 1,4,6-trisphosphate + ATP |
relative substrate specificity 93.9% |
| 2.7.1.158 | more |
StITPK1 displays inositol 3,4,5,6-tetrakisphosphate 1-kinase activity. The enzyme displays inositol 1,3,4,5,6-pentakisphosphate 1-phosphatase activity in the absence of a nucleotide acceptor and inositol 1,3,4,5,6-pentakisphosphate-ADP phosphotransferase activity in presence of physiological concentrations of ADP. Additionally, StITPK1 shows inositol phosphate-inositol phosphate phosphotransferase activity. |
| 2.7.1.158 | ATP + 1D-myo-inositol 1,3,4,5,6-pentakisphosphate |
the enzyme may be involved in both inositol hexakisphosphate formation in maturing seeds and ATP resynthesis in germinating seeds |
