10          20        30        40        50        60 
GUCACCUACCUGGAGAA--|      U           A  CU        U  GUGACAGC 
                   GACUGCU CAUAUCGGUCG GG  AGUGUAAU CU        \
                   UUGACGA GUAUAGUCGGC CC  UCACGUUA GA        U
UGAAAGUCUUCUACAUUCA^      U           C  AU        U  ACGACGUU 
 120       110       100        90        80        70