SroB RNA

The sroB RNA (also known as MicM, rybC, or ChiX) is a non-coding RNA gene of 90 nucleotides in length. sroB is found in several Enterobacterial species, but its function is unknown.^[1][2] SroB is found in the intergenic region on the opposite strand to the ybaK and ybaP genes.^[1] SroB is expressed in stationary phase.^[1] Experiments have shown that SroB is a Hfq binding sRNA.^[2][3]

sroB RNA
Predicted secondary structure and sequence conservation of sroB
Identifiers
Symbol	sroB
Rfam	RF00368
Other data
RNA type	Gene; sRNA
Domain(s)	Bacteria
SO	SO:0000655
PDB structures	PDBe

Further evidence has shown that SroB negatively regulates the outer membrane protein YbfM by sequestering the ribosome binding site of ybfM mRNA by an antisense interaction.^[4] SroB also regulates the DpiA/DpiB two-component system.^[5] Furthermore, SroB itself appears to be the target of a non-coding transcript from the chbBC intergenic region.^[6][7][8]