+-------------COMP:V-N(in)-------------+    
      +----------SUBJ:V-N----------+        +---------MOD_ATT:N-N---------+    
      +----COMP:N-N(of)----+       |        |     +------MOD_ATT:N-N------+    
      |            +MOD_ATT+       |        |     |              +MOD_ATT:+    
      |            |       |       |        |     |              |        |    
 Expression of __NODE__ protein occurs in cell surface from BA/__NODE__ 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,cell)
MOD_ATT:N-N (cell,surface)
MOD_ATT:N-N (cell,BA/__NODE__)