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(A) Predicted targeting sites of C/D subfamily small nucleolar RNA (snoRNAs) on (A) 18S and (B) 28S rRNA. The nucleotides under 2′-O-methylation were indicated in red color. The C box was shown in blue, while the D box was in green. (C) Predicted targeting sites of H/ACA subfamily snoRNAs on 28S rRNA, the nucleotide under pseudouridylation was indicated in green color. H box is shown in yellow and the ACA box in purple.
