PI_PM -> PIP_PM PIP_PM -> PI_PM PIP2_PM -> DAG_PM + IP3_Cyt DAG_PM + IP3_Cyt -> PIP2_PM PLC_PM -> PLC_act_PM PLC_act_PM -> PLC_PM PIP2_PHGFP_PM -> DAG_PM + IP3_Cyt + PH_GFP_Cyt DAG_PM + IP3_Cyt + PH_GFP_Cyt -> PIP2_PHGFP_PM PH_GFP_Cyt + PIP2_PM -> PIP2_PHGFP_PM PIP2_PHGFP_PM -> PH_GFP_Cyt + PIP2_PM IP3_Cyt -> 0 0 -> IP3_Cyt PIP_PM -> PIP2_PM PIP2_PM -> PIP_PM IP3_Cyt + PH_GFP_Cyt -> IP3_PHGFP_Cyt IP3_PHGFP_Cyt -> IP3_Cyt + PH_GFP_Cyt