10          20        30        40        50        60 
UUAACAAAUAAUCCAUAC--|   U      UU         UCU    G    UUCAUAAU 
                    AUUU GGUUGG  CUUUGGUAU   AGCU UAGA        \
                    UAAA UCGACC  GAAACCAUA   UCGA AUCU        A
AUUUGUUUCACGUCGUUCGU^   U      UC         UUU    A    ACUAUCAA 
 120       110       100        90        80        70