10 20 30 40 50 UUCUCUCCCCUGGUUCG---| AC U GA A GUUCA GGUCUU UGGG UUGCGGGGG UC CAUCAUGU \ CCAGGA ACUC AAUGUCCCC AG GUGGUACA C UGCUGCAUAACAACGACUGC^ A- C UC G GCGUA 110 100 90 80 70 60