Biology:PinT small RNA

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PinT sRNA
RF01404.svg
Predicted secondary structure and sequence conservation of PinT small RNA
Identifiers
RfamRF01404
Other data
Domain(s)Bacteria
SO0001263
PDB structuresPDBe

In bacteria, PinT small RNA is a small regulatory RNA (sRNA) that is activated during stress and virulence conditions. sRNAs base-pair with target mRNAs and modulate their stability or translation. The expression of PhoP-activated sRNA called PinT is highly induced during Salmonella enterica infection. PinT temporally controls Salmonella virulence genes. On bacterial internalization it controls the expression of invasion associated effectors (SPI-1) through the direct base-pairing with the mRNA. Later in infection it represses the virulence genes (SPI-2) allowing the switch from an invasive state to the state of intracellular replication.[1]

References

  1. "Dual RNA-seq unveils noncoding RNA functions in host-pathogen interactions". Nature 529 (7587): 496–501. January 2016. doi:10.1038/nature16547. PMID 26789254.