Figure 6-5
Common players in signal propagation
PLC-γ
•A key enzyme in phosphatidylinositol bisphosphate (PIP2) metabolism and lipid signaling pathways; activated by pTyr and membrane recruitment.
•Contains two SH2 domains and one SH3 domain (required for recruitment  
• Cleaves membrane lipid PIP2; one molecule can cleave many PIP2  amplifying and sustaining the signal
PKC
p(Ser/Thre)
Inner membrane
Further Ca2+ act