10                20        30        40        50          
GUGACAGAGCUAAUCAUUA--------|    UGACCCUGAA             U  C  UCCACU 
                           GCACC          CCCAGGGAUAGAA AG GG      \
                           CGUGG          GGGUCCCUAUCUU UC CC      U
UCCCGUCGUUACCACCACCGUCGUCGC^    UCA-------             U  C  UGAAGG 
.       110       100        90               80        70