text: PIP5K1B encodes phosphatidylinositol 4-phosphate 5-kinase β type I (<< pip5k1β >>), an enzyme functionally linked to actin cytoskeleton dynamics that phosphorylates [[ phosphatidylinositol 4-phosphate ]] [PI(4)P] to generate phosphatidylinositol-4,5-bisphosphate [PI(4,5)P2].