Phosphatidylinositol-4-phosphate 5-kinase, plant (IPR017163)

Short name: PIno-4-P-5_kinase_pln

Overlapping homologous superfamilies

Family relationships


This entry represents a group of plant-type phosphatidylinositol-4-phosphate 5-kinases (PIP5K; EC:, which play an essential role in coordinating plant growth, especially in response to environmental factors. This enzyme phosphorylates phosphatidylinositol-4-phosphate to produce phosphatidylinositol-4,5-bisphosphate as a precursor of two second messengers, inositol-1,4,5-triphosphate and diacylglycerol, and as a regulator of many cellular proteins involved in signal transduction and cytoskeletal organisation. This enzyme is involved in flowering, and may suppress floral initiation by modifying the expression of genes related to floral induction. It appears to be stress-induced [PMID: 9753781, PMID: 17220200].

GO terms

Biological Process

No terms assigned in this category.

Molecular Function

GO:0016308 1-phosphatidylinositol-4-phosphate 5-kinase activity
GO:0005524 ATP binding

Cellular Component

No terms assigned in this category.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.