10 20 30 40 50 UUAAGAUGUAGAAUAGC---| U G GU - AUCCUGUAUU AAUGC CAU AG GCUCAGUAGUCAG UGUAG \ UUACG GUA UC UGGGUCAUCGGUC ACAUC C ACACGGUUGUCCUUCACCUU^ - G UC U GACGACUAAU 120 110 100 90 80 70