10         20        30        40        50        60     
CUCACCUGCAGCGGCGU-|   UC UG   CU   GU         A      GUGGGGCCGAGU 
                  CUGU  U  UGG  GAG  AGUAGAUUG AUAGUU            C
                  GACG  G  AUC  UUC  UCAUCUAAC UAUCAA            C
UCCAGCUGCCACUUAGGA^   GA GA   CU   UG         A      UUGCGUCUCCCU 
 .       120       110       100        90        80        70