Vibrio cholerae ToxT activated RNAs
In molecular biology, Vibrio cholerae ToxT activated RNAs are small RNAs which are produced by the bacterium Vibrio cholerae. They are regulated by the transcriptional activator ToxT and may play a role in V. cholerae virulence.[1] Two ToxT activated RNAs have been described: TarA (ToxT activated RNA A) and TarB (ToxT activated RNA B).
TarA
The TarA small RNA regulates PtsG, a glucose transporter involved in the regulation of glucose uptake. Regulation of PtsG by TarA may be dependent upon the Hfq protein, an RNA chaperone.[2]
TarB
TarB inhibits the expression of Toxin coregulated pilus biosynthesis protein F (TcpF). It does not act in conjunction with Hfq.[3]
See also
References
- ^ Bardill, JP; Hammer, BK (April 2012). "Non-coding sRNAs regulate virulence in the bacterial pathogen Vibrio cholerae". RNA biology. 9 (4): 392–401. doi:10.4161/rna.19975. PMC 3384565. PMID 22546941.
- ^ Richard, AL; Withey, JH; Beyhan, S; Yildiz, F; DiRita, VJ (December 2010). "The Vibrio cholerae virulence regulatory cascade controls glucose uptake through activation of TarA, a small regulatory RNA". Molecular Microbiology. 78 (5): 1171–81. doi:10.1111/j.1365-2958.2010.07397.x. PMC 3064952. PMID 21091503.
- ^ Bradley, ES; Bodi, K; Ismail, AM; Camilli, A (July 2011). "A genome-wide approach to discovery of small RNAs involved in regulation of virulence in Vibrio cholerae". PLoS Pathogens. 7 (7): e1002126. doi:10.1371/journal.ppat.1002126. PMC 3136459. PMID 21779167.
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