10          20        30        40        50        60
CUGAUAUUACAAGUAAA--|         A                A       UUUUCUG 
                   AAUUAAUAUG AACUGACUGAAUAGGU GGGUCAU       U
                   UUGAUUAUAC UUGAUUGACUUAUCCA CCCGGUA       G
AUGAAUAGUUAUACUUUAU^         C                A       CACGUCA 
120       110       100        90        80        70