10          20        30        40        50        60
AUACAAGAAUUAAAAAC--|  C         A                U  AGUUGCCUU 
                   GGU CUUGCCCUC AGGAGCUCACAGUCUA UG         U
                   UCA GGACGGGAG UCCUCGAGUGUUAGAU AC         C
AAAAAAAGUCCACUUGUUU^  C         G                C  CCUUUCAGU 
120       110       100        90        80        70