Table 1 Organization of the RNase R genomic region in some Gram+ and Gram- bacteria

From: Synergies between RNA degradation and trans-translation in Streptococcus pneumoniae: cross regulation and co-transcription of RNase R and SmpB

Gram +	Streptococcus pneumoniae	*secG-rnr-smpB*
	Bacillus subtilis	*secG* -yvaK- *rnr-smpB* -ssrA
	Listeria monocytogenes	*secG* -LMHCC_0148- *rnr-smpB*
	Staphylococcus aureus	*secG* -SAB0735- *rnr-smpB*
	Clostridium botulinum	*secG* - *rnr* -surE- *smpB*
	Lactobacillus acidophilus	*secG* - *rnr* - *smpB*
	Enterococcus faecalis	*secG* -EF2619-EF2618- *rnr* - *smpB*
Gram -	Escherichia coli	nsrR- *rnr* -rlmB-yjfI ^a
	Salmonella typhimurium	yjeT-purA-yjeB- *rnr* -yjfH-yjfI
	Pseudomonas aeruginosa	*rnr* -PA4936-rpsF

secG, rnr and smpB genes are highlighted.

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