+------------------SUBJ:V-N-----------------+                       
      +--------COMP:N-N(of)-------+               |                       
      |           +-MOD_ATT:N-ADJ-+               +--COMP:V-N(in)-+       
      |           |       +MOD_ATT+          +-NEG+       +MOD_ATT+       
      |           |       |       |          |    |       |       |       
 Expression of __SP__ __NODE__ protein does not occur in Th2 lymphocytes .
COMP:N-N(of) (expression,protein)
MOD_ATT:N-ADJ (protein,__SP__)
MOD_ATT:N-ADJ (protein,__NODE__)
SUBJ:V-N (occur,expression)
NEG (occur,not)
COMP:V-N(in) (occur,lymphocyte)
MOD_ATT:N-N (lymphocyte,Th2)