phosphatidylinositol-4-phosphate 5-kinase family protein. Identical to Phosphatidylinositol-4-phosphate 5-kinase 8 (PIP5K8) [Arabidopsis Thaliana] (GB:Q8RY89;GB:Q9C962); similar to phosphatidylinositol-4-phosphate 5-kinase family protein [Arabidopsis thaliana] (TAIR:AT1G10900.1); similar to PIP5K9 (PHOSPHATIDYL INOSITOL MONOPHOSPHATE 5 KINASE), 1-phosphatidylinositol-4-phosphate 5-kinase [Arabidopsis thaliana] (TAIR:AT3G09920.1); similar to PIP5K9 (PHOSPHATIDYL INOSITOL MONOPHOSPHATE 5 KINASE), 1-phosphatidylinositol-4-phosphate 5-kinase [Arabidopsis thaliana] (TAIR:AT3G09920.2); similar to unnamed protein product [Vitis vinifera] (GB:CAO247