10          20        30        40           50         
CCAUUGGGGGAUAGUAA--   UGU     U    C       ---|       A  GUGAUC 
                   GCU   GUGAG UGCU UGACAGU   GUUGCACU CU      U
                   CGA   UACUU ACGA ACUGUUA   UAACGUGA GA      C
ACGUUUUUCGACCUCAACA   CCU     U    A       UGA^       C  AGUAAA 
 120       110       100        90        80        70        60