10 20 30 40 50 GCGGGGGCGUCUCUUGAA-- C --| U U C UUGCA CUCGGUGCC UC AGCU CU UACAGUGCUGC UUG A GAGCCACGG AG UCGG GA AUGUUACGACG AAC G UUGUUUGUUCGGCUCGUCCG A UA^ - C - UGAAC . 110 100 90 80 70 60