+--------------SUBJ:V-N--------------+                                
      +--------COMP:N-N(of)-------+        |                                
      |           +-MOD_ATT:N-ADJ-+        |                                
      |           |       +MOD_ATT+        +--OBJ:V-N-+-COMP:N-N(of)+       
      |           |       |       |        |          |             |       
 Activation of __SP__ __NODE__ protein decreases expression of __NODE__(s) .
COMP:N-N(of) (activation,protein)
MOD_ATT:N-ADJ (protein,__SP__)
MOD_ATT:N-ADJ (protein,__NODE__)
SUBJ:V-N (decrease,activation)
OBJ:V-N (decrease,expression)
COMP:N-N(of) (expression,__NODE__(s))