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. 2009 Oct 9;37(22):7665–7677. doi: 10.1093/nar/gkp816

Figure 1.

Figure 1.

Modification map of S. cerevisiae rRNA. (A) Secondary structure of the small subunit (SSU) and large subunit (LSU) rRNAs with Nm and Ψ modifications. The modification-rich regions featured in this study are boxed. (B) Modifications in the decoding region in the SSU. The partial sequences of five stem–loop regions implicated in decoding are shown. Modifications are identified with yeast rRNA position numbers, and names of the corresponding guide snoRNAs are given in parentheses. A gray triangle indicates a modification in helix 31 that is not implicated in decoding. (C) Modifications in the ASF region in the LSU. Two flanking helices examined are also shown. Gray dots and triangles indicate modifications not examined in this study. (D) Modifications in H69 in the LSU. Flanking stem–loop structures are also given.