TABLE 1.

RNA substrates

P12/T26	5 ′-GGAGAGAAAAGG
	3′-CCUCUCUUUUCCCGUUUUUUUUGACA-5′
P12/T26_14U	5′-GGAGAGAAAAGG
	3′-CCUCUCUUUUCCUGUUUUUUUUGACA-5′
P12/T26_14A	5′-GGAGAGAAAAGG
	3′-CCUCUCUUUUCCAGUUUUUUUUGACA-5′
P12/T26_14G	5′-GGAGAGAAAAGG
	3′-CCUCUCUUUUCCGCUUUUUUUUGACA-5′