Figure 1

SSU Decoding site RNAs. Shown are the A- and P-site tRNAs as green and red strand ribbons, the mRNA fragment as space filled, and two segments of the 16S RNA in backbone (the self-folding long helix 1402–1498 (1GIX.pdb) containing the conserved A-1492 and A-1493 as black dots and the short segment containing G-530 shown as a black dot. The proteins: S9 is displayed as yellow, S12 as cyan, and S13 as gray.