+-------OBJ:V-N-------+              
                                        +-----COMP:N-N(of)----+             |      +--MOD_ATT:N-N-+              
     +MOD_ATT+MOD_PRED:N-+COMP:ADJ-N(for+             +MOD_ATT+---SUBJ:V-N--+      |      +MOD_ATT+              
     |       |           |              |             |       |             |      |      |       |              
 __NODE__ protein is necessary for proteolysis of __NODE__ protein that involves anti __NODE__ protein antibody .
MOD_ATT:N-ADJ (protein,__NODE__)
MOD_PRED:N-ADJ (protein,necessary)
COMP:ADJ-N(for) (necessary,proteolysis)
COMP:N-N(of) (proteolysis,protein)
MOD_ATT:N-ADJ (protein,__NODE__)
SUBJ:V-N (involve,protein)
OBJ:V-N (involve,protein)
MOD_ATT:N-N (protein,anti)
MOD_ATT:N-ADJ (protein,__NODE__)

                                        +---------------------SUBJ:V-N--------------------+                      
                                        +-----COMP:N-N(of)----+                           |                      
     +MOD_ATT+MOD_PRED:N-+              |             +MOD_ATT+---SUBJ:V-N--+OBJ:V-+      +OBJ:V-N+              
     |       |           |              |             |       |             |      |      |       |              
 __NODE__ protein is necessary for proteolysis of __NODE__ protein that involves anti __NODE__ protein antibody .
MOD_ATT:N-ADJ (protein,__NODE__)
MOD_PRED:N-ADJ (protein,necessary)
COMP:N-N(of) (proteolysis,protein)
MOD_ATT:N-ADJ (protein,__NODE__)
SUBJ:V-N (involve,protein)
OBJ:V-N (involve,anti)
SUBJ:V-N (__NODE__,proteolysis)
OBJ:V-N (__NODE__,protein)