10         20        30         40        50          
AAACAGAAGACUUGUCA-            CU-|     CUA     U UG     UGAAA 
                  GGCAUUCGCAGU   GGAAGA   GUGAU U  UUGUU     \
                  CUGUAGGUGUUA   CCUUCU   CACUA A  AACAA     U
UAGAGUUUACGACCCACA            AAC^     AA-     - GU     GAAGU 
       110       100        90        80          70