10         20         30        40        50        60     
CACCUACAGGAGACAAACU-   -|  UG   U   GU                UUAGGGUCCUUC 
                    GUC CUU  GGG GAG  AGUAGGUUGUAUAGUU            C
                    CAG GAG  CCU UUC  UCAUUCAACAUAUCAG            C
GGCCACUACUACGAUCGUGU   C^  GU   -   UG                UAGACUGUUGAA 
 .       120       110       100         90        80        70