10          20        30        40        50        60  
CACGGACAUGGAAGCAUG--|    A UG  CU       CGUA          UUUAGGAUU 
                    UCAGC G  CU  AGCAGCA    AAUACUGGAG         G
                    GGUCG U  GA  UCGUCGU    UUAUGACCUC         C
GGACGGCACCCGUGCUGGUA^    G GU  UU       UACG          UCGUCGAUC 
    120       110       100        90        80        70