10          20        30        40           50         
UCCACGUGCUGACACAU--  U        C    C       ---|       A  GUACCA 
                   GC GAGGUCAG UGCU UGACAAU   GUUGCACU CU      U
                   CG CUCCGGUU ACGA ACUGUUA   UAACGUGA GA      C
CCCGGGGUCCAAUCGCACU  U        U    U       UGA^       C  UCUUAC 
 120       110       100        90        80        70        60