10           20        30        40        50        60 
GGCUGGUGUACUAUGUU--  -|    U           U               CUGUUGUC 
                   GG GGUUG CAGAUAGGUCG GGUGAGUGCAAUGUU        \
                   CC UCGAC GUUUAUUCGGC CCAUUCACGUUAUAA        U
UUGUACGUCUAGUUUCUAU  A^    -           C               AAGUAAGC 
 120       110       100         90        80        70