10          20        30        40        50        60  
AAACCCCCGAAACCGAU--|    ACU     C       C      UU       UGAAUAA 
                   CUGUA   CACCU UCAUUUU GUGAUU  UGCAAUU       A
                   GACAU   GUGGG AGUGAAA CACUGA  ACGUUAA       C
AUGGUAGGGGCCAGUCGAA^    AUC     U       A      U-       AGGUUAA 
   120       110       100        90        80         70