Fig. 3: Detailed view of the decoding centre during trans-translation.
From: Structures of tmRNA and SmpB as they transit through the ribosome
Close-up of the interactions between SmpB (purple) and the conserved nucleotides G530, A1492 and A1493 of the 16S rRNA (khaki) in the a pre-accommodation and b accommodation states. c Interactions between tmRNA’s resume codon (red) and the same nucleotides during the translocation state. Residues and nucleotides within 4 Å of each other are indicated, and the cryo-electron density map is displayed.
