+------COMP:V_PASS-N(in)-----+                       
     +MOD_ATT+SUBJ:V_PASS+              +MOD_ATT:N-ADJ+COMP:N-N(of)+          
     |       |           |              |             |            |          
 __NODE__ protein is involved in transcriptional regulation of __NODE__ gene .
MOD_ATT:N-ADJ (protein,__NODE__)
SUBJ:V_PASS-N (involve,protein)
COMP:V_PASS-N(in) (involve,regulation)
MOD_ATT:N-ADJ (regulation,transcriptional)
COMP:N-N(of) (regulation,__NODE__)