10        20          30        40        50        60
UUGUAAAGAUAACGAAGUCUAUAUA--|  UC    A     A           UGCAAAU 
                           CCA  AGCG GGUAU GAGUUCCUACG       U
                           GGU  UCGU CCAUA UUCAAGGAUGC       G
AAUAAGCAAAACAACCAGCUGUCGGGA^  UC    G     A           UGAUAAC 
120       110       100        90        80        70