10          20        30        40        50     
AUUAGUGUCAUAAAUAU--|     AAAA       A       A        GUG 
                   AAUAUA    AUCUCCA AUAUAUU UAAAGACG   \
                   UUAUAU    UAGAGGU UAUAUAA AUUUCUGC   U
AUGGCCAUUGUUUUUGAGG^     AAUA       G       G        CAU 
 .       100        90        80        70        60