+MOD_ATT:+-SUBJ:V-N+-OBJ:V-N+COMP:N-N(of)+     
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 Srebp protein(s) mediates synthesis of __NODE__ .
MOD_ATT:N-N (protein(s),Srebp)
SUBJ:V-N (mediate,protein(s))
OBJ:V-N (mediate,synthesis)
COMP:N-N(of) (synthesis,__NODE__)