10        20          30        40           50         
AAAAUGCAUAUCUUUAUUUCAU--  A               ---|      C   UCGUUGU 
                        UG AUAUGAGCUGGAAGA   UGGAUUU GCA       U
                        AC UAUACUCGACCUUCU   AUCUAGA CGU       U
ACAGCUGUUUAUAUUAAUCUGAAU  C               UAU^      C   AAAAUAU 
 120       110       100        90        80        70        60