RNA switch

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RNA switches are regulatory systems that rely on alternative mRNA structures.

RNA switches may be triggered by proteins, tRNAs (T-box), or metabolites (riboswitches)

List of Bacillus subtilis RNAswitches

  • Potential additional RNA switches
    • pyrG RNA switch: low levels of intracellular CTP induce reiterative addition of G residues at position +4 in the 5' end of the pyrG mRNA, which is encoded as pppGGGC. . . . The poly(G) sequences formed under these conditions act to prevent attenuation by base pairing with the C- and U-rich 5' strand of a downstream terminator stem-loop located in the pyrG leader. PubMed

The function of the following potential RNA structures is unknown. They were suggested to control the mentioned genes.

Important Reviews