10         20         30        40        50          
AACAGUACGGGCUACAC-      UC-|  UC     G     UC    UGCUUAUGGCUC 
                  GUCCUC   UCA  AGGGA UUUGC  GCCA            \
                  CAGGGG   AGU  UCCCU AAACG  CGGU            U
UAGUGCCCAAACGAGUUA      UGC^  CU     A     UC    CAAAUAUCUAAG 
 .       110       100        90        80        70