10          20        30        40        50        60  
CCUGACAUGGCCUCCUGCA--|    A    CCGU                GUUGGACACUCC 
                     GUGCC CGCU    GUAUUUGACAAGCUGA            \
                     CACGG GUGA    CAUAAACUGUUUGACU            A
ACCGGACCUCGACGAUCCGUA^    C    ACCC                GUGAGAUGGUAU 
   120       110       100        90        80        70