10 20 30 40 50 CACCCGCUGUGGAAAUU--| UG A U CA UC GUAG GACUUAGC GG AG GGGGAA CU CGUGAGGA \ UUGGGUCG CC UC UCCCUU GA GUAUUCCU A GUCUCGUCCUAGACUGAAG^ GU A U A- CC CACG 110 100 90 80 70 60