10          20        30        40        50        60     
UACUGGAGGAGCAGAGU--| G         CU   GU     U          UUAGGAUCACAC 
                   GG AGCUGUGGG  GAG  AGUAG UUGUAUAGUU            C
                   CC UCGGCACUC  UUC  UCAUC GACAUAUCAA            A
ACAGGACGACCGCUGCAAA^ A         U-   UG     U          UAGAGGGUCUAG 
 .       120       110       100         90        80        70