+-------COMP:V-N(in)-------+    
      +----------SUBJ:V-N----------+       +----MOD_ATT:N-N---+    
      +----COMP:N-N(of)----+       |       |      +MOD_ATT:N-A+    
      |            +MOD_ATT+       |       |      |      +MOD_+    
      |            |       |       |       |      |      |    |    
 Expression of __NODE__ protein occurs in MDA __NODE__ 435S cells .
COMP:N-N(of) (expression,protein)
MOD_ATT:N-ADJ (protein,__NODE__)
SUBJ:V-N (occur,expression)
COMP:V-N(in) (occur,cell)
MOD_ATT:N-N (cell,MDA)
MOD_ATT:N-ADJ (cell,__NODE__)
MOD_ATT:N-ADJ (cell,435S)