10          20        30        40           50        
CCUUCAUCCCUACUCCU--       G    A   C      G---|       A  GUGCU 
                   GUUGGCU CAGA GCU UGACGA    GUUGCACU CU     \
                   CGACCGG GUCU CGA ACUGUU    UAACGUGA GA     C
CCACUCCUUGUAAGGGUUC       G    A   A      AUAG^       C  AGAGU 
.       110       100        90        80        70        60