10            20        30        40        50        60  
ACCCCGCGCGUCCUCGA----|     UU  UA            UU           GGAAGGU 
                     CAGUCU  GC  CUGUAAACAUCC  GACUGGAAGCU       \
                     GUCGGA  CG  GACAUUUGUAGG  CUGACUUUCGA       G
CCGCCCAGCCCGGCUGACACC^     --  GC            --           GGAAGCC 
 120       110       100          90          80        70