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. 2022 Nov 2;50(20):11924–11937. doi: 10.1093/nar/gkac961

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© The Author(s) 2022. Published by Oxford University Press on behalf of Nucleic Acids Research.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 4. — BUD23 maintains h18 of the 18S rRNA in a new immature conformation. (A) A molecular model of the complex formed between TRMT112 and the methyltransferase domain of BUD23. SAH and m7G1639 of the 18S rRNA are shown in stick representation surrounded by density map. (B–D) The conformation of h18 of the 18S rRNA in state Dis-C (B), Tsr1-1 to RRP12-A (C) and RRP12-B1 (D). The assembly factors responsible for keeping the 18S rRNA h18 immature are shown. The secondary structures of h18 are shown inset in the lower right corners of each panel.