10            20        30        40        50        60
CUCGCCGCGUGCUCUCU----|  CUC        U                    CCUCGGU 
                     GGC   CAGGGCCU GUACAUGGUAGGCUUUCACC       U
                     CCG   GUCCCGGA CAUGUGUCAUCCGGAAGUGG       G
CGCAGGCAGGUGAACUUCAGA^  U--        C                    CCGAUUC 
120       110       100          90        80        70