+-------COMP:N-N(of)-------+   
     +--MOD_ATT:N-N--+                   |           +-MOD_ATT:N-ADJ+   
     |      +MOD_ATT:+SUBJ:V-N+--OBJ:V-N-+           |       +MOD_AT+   
     |      |        |        |          |           |       |      |   
 Igf 2 [__NODE__] protein decreases expression of __SP__ __NODE__ mRNA .
MOD_ATT:N-N (protein,2)
MOD_ATT:N-N (protein,[__NODE__])
SUBJ:V-N (decrease,protein)
OBJ:V-N (decrease,expression)
COMP:N-N(of) (expression,mRNA)
MOD_ATT:N-ADJ (mRNA,__SP__)
MOD_ATT:N-ADJ (mRNA,__NODE__)