10          20        30        40        50        60 
UCCAAGUCUUAAAGAAA--|   U   UG         U               UAUCUAAA 
                   CUGU AAG  CUGUGGAUU CUUUGUGAAUCACCA        \
                   GACA UUC  GAUACUUAA GAAACAUUUGGUGGU        C
UCUAGUUGACGUCUUCAUG^   C   GU         U               GGUGUGAU 
 120       110       100        90        80        70