+------COMP:N-N(of)-----+      
    +-SUBJ:V-N+--OBJ:V-N-+             +MOD_ATT:N+      
    |         |          |             |         |      
 GGTase I increases prenylation of __NODE__ protein(s) .
SUBJ:V-N (increase,GGTase)
OBJ:V-N (increase,prenylation)
COMP:N-N(of) (prenylation,protein(s))
MOD_ATT:N-ADJ (protein(s),__NODE__)