+----MOD_ATT:N-ADJ---+-------------------SUBJ:V-N------------------+             
     |        +MOD_ATT:N-N+                              +-NEG-+        +OBJ:V-N+     
     |        |           |                              |     |        |       |     
 __NODE__ decreases tumorigenesis of organism that does not involve __NODE__ protein .
MOD_ATT:N-ADJ (tumorigenesis,__NODE__)
MOD_ATT:N-N (tumorigenesis,decrease)
NEG (involve,not)
SUBJ:V-N (__NODE__,tumorigenesis)
OBJ:V-N (__NODE__,protein)