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. 2021 Jun 13;18(12):2617–2632. doi: 10.1080/15476286.2021.1935573

Figure 5.

Figure 5.

Cryo-EM structure of yeast ribosomes with bound rancRNA_18. (A) structure of the 60S ribosomal subunit (wheat) with highlighted rancRNA_18-dependent extra density (red), overlaid with the observed densities for P- and E-site tRNAs (blue) and the L1 stalk (green) in its closed conformation at 4.4 to 5.1 Å resolution. (B) representation of the 60S ribosomal subunit with rRNA in dark grey and ribosomal proteins in light grey. the observed rancRNA_18-dependent extra density (red), the two observed crosslinking site (C2675 and C2693, yellow),) and the L1 stalk (green) in its slight inward position are highlighted. (C) zoom into the rancRNA_18-dependent extra density (red) in close proximity to the observed crosslinking sites (C2675 and C2693, yellow) and r-protein L11 (uL5) (orange)