10         20         30        40           50        60
AUCUACGAUUUAUUUCAA-    UU-         A     U---|        AU   CAGUU 
                   GCUG   UUAUUCGAC CUACA    GUAUCUAGU  GAC     A
                   CGAC   AAUAAGCUG GAUGU    UAUGGGUCA  CUG     U
CGUGCAACUGCACUAUUAC    UGU         G     UACU^        --   AGGCA 
 120       110       100        90        80        70