+--MOD_ATT:N-N--+-----SUBJ:V-N-----+                                   
    |       +MOD_ATT+--APPOS-+         +--OBJ:V-N--+--COMP:N-N(of)-+       
    |       |       |        |         |           |               |       
 Mutant __NODE__ protein ( C656G ) increases transcription of __NODE__(s) .
MOD_ATT:N-N (protein,mutant)
MOD_ATT:N-ADJ (protein,__NODE__)
APPOS (protein,C656G)
SUBJ:V-N (increase,protein)
OBJ:V-N (increase,transcription)
COMP:N-N(of) (transcription,__NODE__(s))