+-MOD_ATT:N-ADJ-+                 +--COMP:N-N(of)--+    
    |       +MOD_ATT+SUBJ:V-+-OBJ:V-N-+          +MOD_A+    
    |       |       |       |         |          |     |    
 __SP__ __NODE__ protein affects morphology of HUVEC cells .
MOD_ATT:N-ADJ (protein,__SP__)
MOD_ATT:N-ADJ (protein,__NODE__)
SUBJ:V-N (affect,protein)
OBJ:V-N (affect,morphology)
COMP:N-N(of) (morphology,cell)
MOD_ATT:N-N (cell,HUVEC)