+---------------COMP:V-N(in)--------------+    
      +--------------SUBJ:V-N-------------+         +---------MOD_ATT:N-ADJ---------+    
      +--------COMP:N-N(of)-------+       |         |       +-----MOD_ATT:N-ADJ-----+    
      |           +-MOD_ATT:N-ADJ-+       |         |       |      +--MOD_ATT:N-ADJ-+    
      |           |       +MOD_ATT+       |         |       |      |       +MOD_ATT:+    
      |           |       |       |       |         |       |      |       |        |    
 Expression of __SP__ __NODE__ protein occurs in __SP__ proximal small intestine tissue .
COMP:N-N(of) (expression,protein)
MOD_ATT:N-ADJ (protein,__SP__)
MOD_ATT:N-ADJ (protein,__NODE__)
SUBJ:V-N (occur,expression)
COMP:V-N(in) (occur,toilet)
MOD_ATT:N-ADJ (toilet,__SP__)
MOD_ATT:N-ADJ (toilet,proximate)
MOD_ATT:N-ADJ (toilet,small)
MOD_ATT:N-N (toilet,intestine)