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. 2021 Dec 1;600(7889):543–546. doi: 10.1038/s41586-021-04131-9

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© The Author(s) 2021

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Extended Data Fig. 7 — In bacteria the internal loop of h44 of 16S rRNA consists of two nucleotides (A1492-A1493) on the 3’-side and has one nucleotide on the 5’-side (A1408). In contrast, eukaryotic 18S rRNA contains at least one additional nucleotide on each side is included (dashed box). Secondary structure diagrams of helix 44 from bacteria (16S rRNA, left) and from yeast and human (18S rRNA, right).