10          20        30        40        50          
AUAUCUCGAGUUCUUAC--|         C        G           U   GUUUUGG 
                   ACGAGGGAGA UAUCAGCU UCAUGAUGCCU CCU       \
                   UGUUUCCUUU AUGGUUGG AGUAUUACGGA GGG       A
CACCCUCAACAACUAAAAU^         A        A           U   UUUGAGA 
 .       110       100        90        80        70