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Figure 4.
Figure 4. Schematic representation of the recognition by S15 on
rRNA, possible implications in 30S assembly and comparison with
mRNA binding. S15 is schematized in green with its two RNA
binding sites numbered 1 and 2. The first one recognizes a
particular backbone geometry (the three-way junction in rRNA and
the pseudoknot fold in mRNA). The second one recognizes an
analogous G-U/G-C motif in both RNAs. In 16S rRNA, binding
induces a conformational adjustment (widening of the deep
groove), denoted by a red star, that is most likely required for
subsequent 30S assembly steps (for example, S18 binding).
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