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It is demonstrated that a cis-encoded RNA-RNA interaction within the bicistronic yabJ-spoVG transcript forms an RNase III substrate that represses the transcription factor SpoVG in Staphylococcus aureus.
Abstract Small regulatory RNAs (sRNAs) are key drivers of bacterial adaptation to environmental fluctuations, including iron and manganese restriction imposed by the host. This study explored the repertoire of sRNAs produced by the human pathogen Staphylococcus aureus in response to metal limitation. Two sRNAs were ide...
Intrinsically disordered regions are widespread in RNA-processing machines. In Escherichia coli, RNase E uses its intrinsically disordered C-terminal domain (CTD) to recruit RNAs to the N-terminal catalytic domain, including mRNAs targeted by regulatory small RNAs (sRNAs), but the basis of substrate recognition and spe...
A new generation of genome editors derived from mobile genetic elements is emerging to address both issues, particularly from the bacterial transposons and insertion sequences colloquially known as ‘jumping genes’.
Findings indicate that the regulatory fate of an sRNA–mRNA interaction is an emergent property of its biophysical context and protein-binding environment, rather than a direct consequence of physical pairing alone.
A prophage-encoded small RNA, HnrS, is identified that functions as an anti-silencing factor by targeting the H-NS paralogue Hha, thereby modulating Hha–H-NS repression of virulence loci including the LEE type III secretion system.
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