| Modification Notes |
Phosphoinositide-specific phospholipase C (PLC) plays a crucial role in the initiation of receptor-mediated signal transduction through the generation of two second messengers, inositol 1,4,5-triphosphate and diacylglycerol, from phosphatidylinositol 4,5-bisphosphate. PLC isozymes are divided into subclasses based on structure and activation mechanisms. PLC-XD3 (phosphatidylinositol-specific phospholipase C, X domain containing 3), also known as PI-PLC X domain-containing protein 3, is a 321 amino acid protein that contains one PI-PLC X-box domain, which is conserved from prokaryotes to mammals and is present in many PLC isozymes. Both X-box and Y-box domains are also important for catalytic activity in PLC proteins. PLC-XD3 is targeted by D5S430, which is a potential prognostic molecular survival marker for tumors without preoperative treatment. The gene that encodes PLC-XD3 maps to human chromosome 5p13.1. |