10            20        30        40        50        60
GCUGACAAUGCAGUGCU----|   AC   U   U    A      ACA         GUGGU 
                     GUGC  UAG GUG GUAA CAUCCU   CUCUCAGCU     G
                     CACG  GUC UAC CAUU GUAGGA   GAGGGUCGA     U
GUGCACCGACGACGAGGUAGA^   --   U   U    C      G--         GUCGA 
.       110       100          90        80          70