Regulated Control of the Assembly and Diversity of LPS by Noncoding sRNAs

Table 1

Known and predicted sRNAs involved in LPS biosynthesis and its modifications.

sRNA	Target	Effect on LPS	Reference(s)
GlmY/GlmZ	GlmS	GlcN6P precursor of LPS	[35, 39, 40]
MicA	Repression of PhoP/Q	P-EtN addition to the second Kdo	[21, 25]
	Repression of WaaR	Switch between glycoforms IV and V	[25]
	Repression of LpxT	Incorporation of lipid A modifications	[24]
GcvB	Repression of PhoP/Q	Direct effect on LPS not known	[68]
RybB	Repression of WaaR	Major control of the synthesis of glycoforms with truncation in the outer core and incorporation of the third Kdo	[25]
SlrA	Repression of Lpp	Levels of fatty acid (phospholipids vs LPS) control	[9, 22]
MgrR	Repression of EptB	Repression of P-EtN incorporation on the second Kdo	[25, 56]
ArcZ	Repression of EptB	Impact on LPS not known	[57]
MicF	LpxR	Deacylation of lipid A	[69]
GadY	waaQ operon	Overexpression causes transcriptional reduction, direct effect on transcription duo to base-pairing not know	[70]
RyeA	LpxM	Predicted from microarray data	[71]
RdlA	EptA	Predicted from microarray data	[71]
RyjB	RfaH	Predicted from microarray data	[71]