+----------COMP:N-N(of)---------+     
                              |               +--MOD_ATT:N-N--+     
     +SUBJ:V_PASS+COMP:V_PASS-+               |      +MOD_ATT:+     
     |           |            |               |      |        |     
 __NODE__ is involved in proteolysis of SREBP 2 [__NODE__] protein .
SUBJ:V_PASS-N (involve,__NODE__)
COMP:V_PASS-N(in) (involve,proteolysis)
COMP:N-N(of) (proteolysis,protein)
MOD_ATT:N-N (protein,2)
MOD_ATT:N-N (protein,[__NODE__])