10            20        30        40        50         
UUCGAGAGGAUUUGAAG----|   U AG   GUU        U          A  GAGAG 
                     GUCU G  CCC   GAAAGACA GGGUAGUGAG UG     A
                     CAGA C  GGG   CUUUCUGU CCCAUCGCUC AC     A
CCCACGCGGUGGUCGUUUAAC^   - AG   AC-        -          G  AAAGA 
       110       100         90         80         70        60