10            20        30        40        50          
GGUUCAACACUCGAGAU----|    AUA   GG         U   U UG   A  GCAGUC 
                     GUCUU   ACA  GUUACUGUC CAC G  CAA GA      \
                     UAGAA   UGU  CAGUGACAG GUG C  GUU CU      U
ACAGUCCUGUCAUCGUCACUG^    C--   AA         U   - GU   -  CCCCUG 
       110       100          90        80         70