+----------------SUBJ:V-N---------------+                      
      +----------COMP:N-N(of)---------+       |                      
      |          +-----MOD_ATT:N-N----+       |                      
      |          |    +-MOD_ATT:N-ADJ-+       +---COMP:V-N(in)--+    
      |          |    |      +MOD_ATT:+       |          +MOD_AT+    
      |          |    |      |        |       |          |      |    
 Expression of SREBP 1A [__NODE__] protein occurs in cultured cells .
COMP:N-N(of) (expression,protein)
MOD_ATT:N-N (protein,SREBP)
MOD_ATT:N-ADJ (protein,1A)
MOD_ATT:N-N (protein,[__NODE__])
SUBJ:V-N (occur,expression)
COMP:V-N(in) (occur,cell)
MOD_ATT:N-ADJ (cell,cultured)