TABLE 2.

Plasmids used in this study

Plasmid name	Insert locus or function	Source or reference
pCM28	Insertless cloning vector	A. Horswill
pCM28_saePQRS	saePQRS-complementing vector	This work
pCM28_srrAB	srrAB-complementing vector	72
pOS-1	Insertless cloning vector	Victor Torres
pOS_saeQRS P18	Vector carrying a constitutively active SaeS allele cloned from Newman	Victor Torres
pTnTet	Construction of menF::Tn (Tet)	77
pJB141	atlA-complementing vector	39
pJB122	atlAAM H263A-complementing vector	39
pJB128	Insertless cloning vector	39