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].