TABLE 1.

Bacterial strains.

Strain	Origin	Source
E. faecium
P21	Wildtype-Laboratory	Herranz et al., 2001
LMGT 20705	Wildtype-Laboratory	Ghent bacterial collection
42 ACA-D6 0237	Wildtype-Laboratory	LMG collection (Ås. Norway)
E1469	Wildtype-Nosocomial	Gift from Rob Willems
E3160	Wildtype-Nosocomial	Gift from Rob Willems
E3449	Wildtype-Nosocomial	Gift from Rob Willems
E6072	Wildtype-Nosocomial	Gift from Rob Willems
E6094	Wildtype-Nosocomial	Gift from Rob Willems
E6856	Wildtype-Nosocomial	Gift from Rob Willems
E7195	Wildtype-Nosocomial	Gift from Rob Willems
E7422	Wildtype-Nosocomial	Gift from Rob Willems
E7660	Wildtype-Nosocomial	Gift from Rob Willems
E8150	Wildtype-Nosocomial	Gift from Rob Willems
P21c.ins7	Mutant derived from P21	This work
P21c.ins23	Mutant derived from P21	This work
P21c.ins43	Mutant derived from P21	This work
P21c.G716A	Mutant derived from P21	This work
3160c.535del	Mutant derived from E3160	This work
6856c.ins104	Mutant derived from E6856	This work
7195c.ins68	Mutant derived from E7195	This work
7422c.G62A	Mutant derived from E7422	This work
7422c.C64A	Mutant derived from E7422	This work
7422c.522del	Mutant derived from E7422	This work
E. faecalis
D6	Wildtype-Laboratory	Palmer et al., 2010
OG1RF	Wildtype-Laboratory	Bourgogne et al., 2008
62	Wildtype-Laboratory	Brede et al., 2011
Symbioflor	Wildtype-Commercial probiotic	Domann et al., 2007
MMH594	Wildtype-Nosocomial	Huycke et al., 1991
V583	Wildtype-Nosocomial	Sahm et al., 1989
Merz96	Wildtype-Nosocomial	Harrington et al., 2004
T3	Wildtype-Nosocomial	Maekawa et al., 1992
TX0104	Wildtype-Nosocomial	The Nih Hmp Working Group et al., 2009
HH22	Wildtype-Nosocomial	Murray and Mederski-Samaroj, 1983
D6c.dup708	Mutant derived from D6	This work
T3c.del708	Mutant derived from T3	This work
TX0104c.C625A	Mutant derived from TX0104	This work