10            20          30        40        50        60 
CUUGUCCUCAAGCGUGG----| C  A    --   CU           G         GAGAAGG 
                     AG UC CAGG  GCA  GAGGAGGGUUU UAACAUGGG       U
                     UC AG GUCU  CGU  CUUCUCCUAGG GUUGUACUC       G
UACGUAUUACUUACAGUUUCC^ -  -    AA   --           -         AGUGGAA 
 120       110        100         90          80         70