+--MOD_ATT:N-N--+                   +----COMP:N-N(of)----+     
     |      +MOD_ATT:+SUBJ:V-N+--OBJ:V-N-+            +MOD_ATT+     
     |      |        |        |          |            |       |     
 IGF 1 [__NODE__] protein increases activation of __NODE__ protein .
MOD_ATT:N-N (protein,1)
MOD_ATT:N-N (protein,[__NODE__])
SUBJ:V-N (increase,protein)
OBJ:V-N (increase,activation)
COMP:N-N(of) (activation,protein)
MOD_ATT:N-ADJ (protein,__NODE__)