3.0
Summary
| Name |  PIP4K2BView Modifications |
| Full Name | Phosphatidylinositol 5-phosphate 4-kinase type-2 beta |
| Synonyms | 1-phosphatidylinositol 5-phosphate 4-kinase 2-beta, Diphosphoinositide kinase 2-beta, Phosphatidylinositol 5-phosphate 4-kinase type II beta, PI(5)P 4-kinase type II beta, PIP4KII-beta, PtdIns(5)P-4-kinase isoform 2-beta | PIP5K2B |
| Primary ID | P78356 |
| Links |  -  -  |
| Type | protein |
| Relations | 1 |
| Function | Participates in the biosynthesis of phosphatidylinositol 4,5-bisphosphate (PubMed:9038203, PubMed:26774281). Preferentially utilizes GTP, rather than ATP, for PI(5)P phosphorylation and its activity reflects changes in direct proportion to the physiological GTP concentration (PubMed:26774281). Its GTP-sensing activity is critical for metabolic adaptation (PubMed:26774281). PIP4Ks negatively regulate insulin signaling through a catalytic-independent mechanism. They interact with PIP5Ks and suppress PIP5K-mediated PtdIns(4,5)P2 synthesis and insulin-dependent conversion to PtdIns(3,4,5)P3 (PubMed:31091439). |
phosphorylation