+MOD_ATT+SUBJ:V_PASS+COMP:V_PASS-+COMP:N-N(of+    
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 __NODE__ protein is involved in mitogenesis of cells .
MOD_ATT:N-ADJ (protein,__NODE__)
SUBJ:V_PASS-N (involve,protein)
COMP:V_PASS-N(in) (involve,mitogenesis)
COMP:N-N(of) (mitogenesis,cell)