Figure 11.12

   Positions within the Escherichia coli 16S rRNA that form contacts with ribosomal protein S5

The distribution of the contact positions (shown in red) for this single ribosomal protein emphasizes the extent to which the base-paired secondary structure of the rRNA is further folded within the three-dimensional structure of the ribosome. For details of the work that led to these results, see Heilek and Noller (1996).