10          20        30        40        50        60
CUGGUAUUUUGAUGCUUU--|  GGC   UGCA                  GUCCUGUUGU 
                    GCU   UGG    GUGCCUGAGGGAGUAAGA          U
                    UGA   ACC    CACGGACUCCCUCAUUCU          G
UUUAACCUCCUCUCGUUCUC^  ACA   UCUA                  GUGAUAGAAU 
120       110       100        90        80        70