10          20        30        40        50
GACCAUUGGACUCUCAA--|      U    UA    G      U     G 
                   GGGAGUG CGGU  AACC UUACCA UACUU U
                   CCCUCGU GUCA  UUGG AAUGGU AUGAA U
ACCGACGACUCUACUCAAA^      C    UA    G      C     U 
100        90        80        70        60