10          20        30        40        50      
GUCGUCAGUUAAACGAC--|   A       C   A             A    CGU 
                   UUGU UUGGUUA CAU AAUGGUAGAUACG AAUU   U
                   GACA AACCAAU GUA UUACCGUCUAUGC UUAG   A
CCAAUGGUAAACAACCUUG^   C       C   A             G    UAA 
  110       100        90        80        70        60