Table 1.
Phosphoinositide pathway enzymes reported in plant nuclei.
| Enzyme name | Abbreviation | Copy no. | Nuclear isoform | Nuclear activity | Citations |
|---|---|---|---|---|---|
| Myo-inositol synthase | MIPS, IPS | 3 | IPS1 | Nd | Meng et al. (2009) |
| Phosphatidylinositol-3-kinase | PI3K | 1 | PI3K | Yes | Bunney et al. (2000) |
| Phosphatidylinositol-4-kinase | PI4Kα, PI4Kβ | 4 | PI4Kβ1 | Yes | Koroleva et al. (2005), Bunney et al. (2000), Hendrix et al. (1989) |
| Phosphatidylinositol-4-phosphate 5-kinase | PIP5K | 11 | AtPIP5K9 | Yes | Lou et al. (2007), Hendrix et al. (1989) |
| Phosphatidylinositol – phospholipase C | PI-PLC | 9 | Nd | Yes (PtdIns only) | Pfaffmann et al. (1987) |
| Diacylglycerol kinase | DAGK, DGK | 7 | AtDGK1, AtDGK2 | Yes | Vaultier et al. (2008), Wissing and Wagner (1992), Hendrix et al. (1989) |
| Phosphatic acid kinase | PAK | Nd | Nd | Yes | Bunney et al. (2000) |
| Inositol phosphate kinase | IPK, IMPK | 2 | AtIPK2α, AtIPK2β | Nd | Xu et al. (2005), Xia et al. (2003) |
| Inositol (1,3,4) P3 5/6-kinase | ITPK | 4 | AtITPK2, AtITPK1-1 | Nd | Koroleva et al. (2005), Qin et al. (2005) |
| Inositol 5-phosphatase | 5Ptase | 15 | At5Ptase13, At5Ptase7 | Nd | Ananieva et al. (2008), Kaye et al. (2011) |