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. 2006 Oct 20;103(44):16484–16489. doi: 10.1073/pnas.0607438103

Fig. 4.

Fig. 4.

Accommodated tmRNA–SmpB complex bound to 70S ribosome in the presence of ribosomal protein S1. 30S subunit is in yellow and 50S subunit is in blue. (a) Cryo-EM map of tmRNA-SmpB shown with low density threshold, along with 70S ribosome shown with normal threshold. (b–d) tmRNA–SmpB complex displayed with different density thresholds, from normal (b) to very low (d). (e) Atomic model of tmRNA complex shown in Fig. 6d, shown for comparison.