TABLE 1.

Putative resistance mutations in the tsx gene, for each E. coli mutant selected for spontaneous resistance to either phage T6, phage U115, or albicidin.

Strains	Mutation type	Alteration in tsx	Alteration in Tsx
T6 R1	Deletion	deletion of 291-321	E79Stop
T6 R2	Insertional Element	IS2 at -75	promoter region
T6 R3	Deletion	deletion of 402-733
T6 R4	Nonsense	G773A *	W236Stop
T6 R5	Insertional Element	IS2 at 403
T6 R6	Nonsense	G435A	W124Stop
T6 R7	Insertional Element	IS2 at 165	IS2
T6 R8	Missense	T725G *	L220R
T6 R9	Nonsense	G535T	E157Stop
T6 R10	Deletion	deletion of 410-420 *	R146Stop
U115 R1	Insertional Element	IS3 at 400
U115 R2	Insertion	insertion (1bp) at 53	signal peptide; E24Stop
U115 R3	Insertional Element	IS1 at 774
U115 R4	Nonsense	G773A *	W236Stop
U115 R5	Missense	T31A	signal peptide; V11E
U115 R6	Insertional Element	IS2 at 161
U115 R7	Nonsense	C375G	Y103Stop
U115 R8	Missense	T725G *	L220R
U115 R9	Deletion	deletion of 429-435	L135Stop
U115 R10	Deletion	deletion of 410-420 *	R146Stop
alb R1	Insertional Element	IS 1 at -3	promoter region
alb R2	Insertional Element	IS1 at 344
alb R3	Deletion	deletion of 64	signal peptide; L89Stop
alb R4	Insertional Element	IS5 at 116
alb R5	Insertional Element	IS2 at 665
alb R6	Insertional Element	IS1 at 692
alb R7	Insertional Element	IS1 at -16	promoter region
alb R8	Missense	G161C	R32P
alb R9	Deletion	deletion of 4	signal peptide; L89Stop

* Indicates paired phage resistant mutants with the same mutation.