+--------------SUBJ:V-N-------------+                          +---------------------OBJ:V-N--------------------+     
      +--------COMP:N-N(of)-------+       +-------COMP:V-N(in)-------+------------OBJ:V-N------------+                |     
      |           +-MOD_ATT:N-ADJ-+       |         +--MOD_ATT:N-ADJ-+                    +----------SUBJ:V-N---------+     
      |           |       +MOD_ATT+       |         |        +MOD_ATT+        +MOD_ATT:N-A+-SUBJ:V-N-+-OBJ:V-N+       |     
      |           |       |       |       |         |        |       |        |           |          |        |       |     
 Expression of __SP__ __NODE__ protein occurs in __SP__ peripheral blood mononuclear leukocytes expressing __SP__ __NODE__ .
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,blood)
MOD_ATT:N-ADJ (blood,__SP__)
MOD_ATT:N-ADJ (blood,peripheral)
MOD_ATT:N-ADJ (leukocytes,mononuclear)
OBJ:V-N (express,blood)
SUBJ:V-N (express,leukocytes)
OBJ:V-N (express,__SP__)
OBJ:V-N (__NODE__,blood)
SUBJ:V-N (__NODE__,leukocytes)