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. Author manuscript; available in PMC: 2015 Dec 17.
Published in final edited form as: Annu Rev Microbiol. 2009;63:27–44. doi: 10.1146/annurev.micro.091208.073514

Figure 3.

Figure 3

Autogenous translational repression of mRNAs containing structured binding sites. The bound regulatory protein competes with ribosome binding in each case. Protein binding sites and/or critical residues involved in protein-RNA interaction are highlighted. Shine-Dalgarno (SD) sequences and initiation codons (Met) of the mRNAs are shown. (a) Binding sites for the coat proteins of bacteriophages Qβ, MS2, and PP7 (33). (b) Binding site for bacteriophage T4 gp32 (5). (c) Binding site for bacteriophage T4 gp43 (40). (d) Binding site for Mycobacterium smegmatis PyrR. The distance between the putative SD sequence and the AUG codon (13 nt) is unusually long (18).