10          20        30        40        50          
UCGGCAGCGGGCCGUCU--|             UC    U  C            UGGGCA 
                   CCCUGUCCUCGGGG  CAGU UU CCAGGAAUCCCU      \
                   GGGGCGGGGGUUCU  GUCA AA GGUCCUUAGGGG      U
UACCACGGCACGACGGUUC^             U-    U  A            GAGACU 
.       110       100        90         80        70