10          20        30        40        50        60   
AAAAAACAGUAAUAUAUU--|     G   C         U  UU   UU     UGUUUUAAU 
                    AUAAUU UCA UUUGCAUUG GA  GCA  GCGCU         U
                    UAUUGA AGU AGACGUGAU CU  CGU  CGCGA         A
UUAAGAAAAACUCUUAAGCU^     A   A         C  UU   U-     CAUAUAUAA 
     120       110       100        90        80         70