10 20 30 40 50 UCACUGAUGAGCCUUCU- -| UG G U- AC G UCUC GGU GCU CUG C GUAACAGCA UCCAU UGGAA U CCG CGA GAC G CAUUGUCGU AGGUG ACCUU G CGCCGAAGUGAACUCAAA U^ GA - UC GA - GUUC 110 100 90 80 70 60