PLCB1 (Phospholipase C Beta 1): PLCB1 is a gene that encodes an enzyme involved in signal transduction pathways. This enzyme catalyzes the hydrolysis of phosphatidylinositol 4,5-bisphosphate (PIP2) to generate inositol trisphosphate (IP3) and diacylglycerol (DAG), both important second messengers. PLCB1 plays a role in various cellular processes, including cell proliferation, differentiation, and neurotransmitter release.