10            20        30        40        50         
UUAAUUCAGAGUCUGAU----|   GU     CU   UU         U   C    GUGUU 
                     GGGA  CCCCU  GCU  AACAUGGGG UAC UGCU     A
                     UUCU  GGGGG  UGA  UUGUACCUU GUG ACGA     A
UCUCUUUUACAACUUGUCAAA^   GU     --   CU         C   A    AAACA 
.       110       100        90          80        70        60