Table 1.

Substrate specificity of the V. cholerae RND efflux systems.

	RND system
	VexAB	VexCD	VexGH	VexIJK	VexEF	VexLM
Antimicrobial peptides	yes	no	no	no	no	no
β-lactams	yes	no	yes	no	no	no
Bile acids	yes	yes	yes	no	yes*	no
Dyes	yes	no	no	no	yes*	no
Erythromycin	yes	no	no	no	yes*	no
Novobiocin	yes	no	yes	yes	yes*	no
SDS	yes	no	no	yes	no	no
Triton X-100	yes	no	yes	yes	yes*	no

*Only observed when expressed in Escherichia coli.