10          20        30        40        50        60  
GUUGGGGUCCAACACCAA--|  C       G         AG     AU      GUGACUA 
                    GGC UUCUGUU UCAGUAACA  GAUUC  CCUGCU       \
                    CCG GGGACGG GGUCAUUGU  CUAAG  GGACGG       U
CGUCACCGGUACAGGUUCCA^  U       G         CU     --      UGUGGUG 
 120       110       100        90        80          70