10          20        30        40        50        60
GGUGAAUCCCCAAGUCU--|         UC       C  UAAG        GAGAUCGU 
                   CUGUCCUACG  CGAGUUC AC    CAAGUUUU        U
                   GGUAGGGUGC  GCUCGAG UG    GUUCAAAA        U
CUAAAGCUUAACGUCAUCA^         UU       U  CACA        ACAAAAAU 
120       110       100        90        80        70