+---------------SUBJ:V-N---------------+                                 
      +---------COMP:N-N(of)--------+        +-----COMP:V-N(in)----+           
      |           +--MOD_ATT:N-ADJ--+        |        +-MOD_ATT:N-N+           
      |           |       +MOD_ATT:N+        |        |     +MOD_AT+           
      |           |       |         |        |        |     |      |           
 Expression of __SP__ __NODE__ protein(s) occurs in Snell dwarf __SP__ kidney .
COMP:N-N(of) (expression,protein(s))
MOD_ATT:N-ADJ (protein(s),__SP__)
MOD_ATT:N-ADJ (protein(s),__NODE__)
SUBJ:V-N (occur,expression)
COMP:V-N(in) (occur,__SP__)
MOD_ATT:N-N (__SP__,Snell)
MOD_ATT:N-N (__SP__,dwarf)