+--------COMP:N-N(of)-------+     
     +MOD_ATT+--COMP:V_PASS-N(In)--+            |           +-MOD_ATT:N-ADJ-+     
     |   +MOD+         +SUBJ:V_PASS+COMP:V_PASS-+           |       +MOD_ATT+     
     |   |   |         |           |            |           |       |       |     
 In 3T3 L1 cells , __NODE__ is involved in activation of __SP__ __NODE__ protein .
MOD_ATT:N-ADJ (cell,3T3)
MOD_ATT:N-N (cell,L1)
COMP:V_PASS-N(In) (involve,cell)
SUBJ:V_PASS-N (involve,__NODE__)
COMP:V_PASS-N(in) (involve,activation)
COMP:N-N(of) (activation,protein)
MOD_ATT:N-ADJ (protein,__SP__)
MOD_ATT:N-ADJ (protein,__NODE__)