RNAIII

RNAIII
Predicted secondary structure and sequence conservation of RNAIII
Identifiers
Symbol RNAIII
Rfam RF00503
Other data
RNA type Gene
Domain(s) Bacteria
SO 0005836

RNAIII is a small RNA which is known to regulate the expression of many Staphylococcus aureus genes encoding exoproteins and cell wall associated proteins.[1] In S. aureus, RNAIII acts as the effector of the agr quorum sensing system and is transcribed from the P3 operon. The RNAIII transcript also contains the 26 amino acid delta-haemolysin gene (hld).[2] RNAIII regulates the expression of the transcription factor rot by blocking its translation. It has been suggested that RNAIII binds to the rot mRNA in an antisense fashion occluding the Shine-Dalgarno sequence.[3][4]

References

  1. Waters LS, Storz G (February 2009). "Regulatory RNAs in Bacteria". Cell 136 (4): 615–28. doi:10.1016/j.cell.2009.01.043. PMC 3132550. PMID 19239884.
  2. Benito, Y; Kolb FA; Romby P; Lina G; Etienne J; Vandenesch F (2000). "Probing the structure of RNAIII, the Staphylococcus aureus agr regulatory RNA, and identification of the RNA domain involved in repression of protein A expression". RNA 6 (5): 668679. doi:10.1017/S1355838200992550. PMC 1369947. PMID 10836788.
  3. Geisinger E, Adhikari RP, Jin R, Ross HF, Novick RP (2006). "Inhibition of rot translation by RNAIII, a key feature of agr function". Mol. Microbiol. 61 (4): 1038–48. doi:10.1111/j.1365-2958.2006.05292.x. PMID 16879652.
  4. Boisset S, Geissmann T, Huntzinger E et al. (June 2007). "Staphylococcus aureus RNAIII coordinately represses the synthesis of virulence factors and the transcription regulator Rot by an antisense mechanism". Genes Dev. 21 (11): 1353–66. doi:10.1101/gad.423507. PMC 1877748. PMID 17545468.

Further reading

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