10          20         30        40        50          
GUGACAGAGGUAACCAUG--    UUUG-|  CUGCA             U  C-  UCCAC 
                    AGCA     ACC     CUCAGGGAUAGAA AG  GG     U
                    UCGU     UGG     GGGUCCCUAUCUU UC  CC     U
GUUUACGGUCACUACCGUCG    CACCA^  UCA--             U  CU  GACGG 
.       110       100        90          80        70        60