+-----------SUBJ:V-N----------+                                    
      +----COMP:N-N(of)----+        +------OBJ:V-N------+                
      |            +MOD_ATT+        |         +MOD_ATT:N+COMP:N-N(of+    
      |            |       |        |         |         |           |    
 Activation of __NODE__ protein increases __NODE__ sensitivity of cells .
COMP:N-N(of) (activation,protein)
MOD_ATT:N-ADJ (protein,__NODE__)
SUBJ:V-N (increase,activation)
OBJ:V-N (increase,sensitivity)
MOD_ATT:N-ADJ (sensitivity,__NODE__)
COMP:N-N(of) (sensitivity,cell)