10 20 30 40 50 GGCAAAGGUGGUCGAUAGCGCAGCCA--| U G C UGUAU UUCC CUGA UCUGG GUCACAUACA U AAGG GACU AGACC CAGUGUAUGU A NNNNNNNNNNNNNNNNNNNNNCUAUAUG^ U A A AAGGA 110 100 90 80 70 60