10          20        30        40        50        60  
UUCAAUCAGGUCAUCAC--|     AC     A           AUCG       UUGAUCCC 
                   UCGCUC  GGCGC GAGCUUAGCUA    GUGAGCA        U
                   AGUGAG  CUGUG CUUGAAUCGGU    CACUUGU        U
GGCGCGAGGCAGUAGGGCA^     GU     A           GA--       CAAAAGAA 
  120       110       100        90        80          70