10          20        30        40           50         
UCCACCUGCUGACACGU--    A      C    U       ---|       A  GUACCA 
                   GCUG GGUCAG UGCU UGACAAU   GUUGCACU CU      U
                   CGAC CCGGUU ACGA ACUGUUA   UAACGUGA GA      C
AUCGUGGGCAUGUCUCCCU    C      U    U       UGA^       C  UCUUAC 
 120       110       100        90        80        70        60