RsmY RNA family
The rsmY RNA family is a set of related non-coding RNA genes, that like RsmZ, is regulated by the GacS/GacA signal transduction system in the plant-beneficial soil bacterium and biocontrol model organism Pseudomonas fluorescens CHA0. GacA/GacS target genes are translationally repressed by the small RNA binding protein RsmA. RsmY and RsmZ RNAs bind RsmA to relieve this repression and so enhance secondary metabolism and biocontrol traits.[1]
| RsmY RNA family | |
|---|---|
 Predicted secondary structure and sequence conservation of RsmY | |
| Identifiers | |
| Symbol | RsmY |
| Rfam | RF00195 |
| Other data | |
| RNA type | Gene; sRNA |
| Domain(s) | Bacteria |
| SO | 0000655 |
| PDB structures | PDBe |
Studies in Legionella pneumophila have shown that the ncRNAs RsmY and RsmZ together with the proteins LetA and CsrA are involved in a regulatory cascade. Also, it appears that these ncRNAs are regulated by RpoS sigma-factor.[2]
References
- Valverde C, Heeb S, Keel C, Haas D (November 2003). "RsmY, a small regulatory RNA, is required in concert with RsmZ for GacA-dependent expression of biocontrol traits in Pseudomonas fluorescens CHA0". Molecular Microbiology. 50 (4): 1361–1379. doi:10.1046/j.1365-2958.2003.03774.x. PMID 14622422.
- Rasis M, Segal G (May 2009). "The LetA-RsmYZ-CsrA regulatory cascade, together with RpoS and PmrA, post-transcriptionally regulates stationary phase activation of Legionella pneumophila Icm/Dot effectors". Molecular Microbiology. 72 (4): 995–1010. doi:10.1111/j.1365-2958.2009.06705.x. PMID 19400807.
Further reading
- Brencic A, McFarland KA, McManus HR, Castang S, Mogno I, Dove SL, Lory S (August 2009). "The GacS/GacA signal transduction system of Pseudomonas aeruginosa acts exclusively through its control over the transcription of the RsmY and RsmZ regulatory small RNAs". Molecular Microbiology. 73 (3): 434–445. doi:10.1111/j.1365-2958.2009.06782.x. PMC 2761719. PMID 19602144.
- Sorger-Domenigg T, Sonnleitner E, Kaberdin VR, Bläsi U (January 2007). "Distinct and overlapping binding sites of Pseudomonas aeruginosa Hfq and RsmA proteins on the non-coding RNA RsmY". Biochemical and Biophysical Research Communications. 352 (3): 769–773. doi:10.1016/j.bbrc.2006.11.084. PMID 17141182.
- Valverde C, Lindell M, Wagner EG, Haas D (June 2004). "A repeated GGA motif is critical for the activity and stability of the riboregulator RsmY of Pseudomonas fluorescens". The Journal of Biological Chemistry. 279 (24): 25066–25074. doi:10.1074/jbc.M401870200. PMID 15031281.
External links
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