Table 1. Strains used in this study.

Strain	Genotype	Source (ref.)
Mu prophage strain
MP1999	recB recC sbcB malF::Mu cts62	Martin Pato
BU1717	F' pro lac::Mu cts62 Bam1066 Su−	[22]
BU1091	F' pro lac leu::Mu cts62 Amp	[19]
MH3491	Mu cts62 Aam1093 Su+	[23]
CW45	MP1999 with cat at 35040 nt of Mu	[13]
SJ17	BU1717 with cat at 35040 nt of Mu	This study
SJ18	MH3491 with cat at 35040 nt of Mu	This study
SJ19	BU1717 with ΔSE::cat in Mu	This study
Plasmid
pJG4	9myc -MuB expressed from pET28a	Jun Ge
Host strain
BU1384	F− Δpro lac Su+	[19]
BU1382	BU1384, himAΔ82	[19]
CW11	BU1384, clpX::kan	[13]
BW25113	rrnB3 ΔlacZ4787 hsdR514 D(araBAD)567 Δ(rhaBAD)568 rph-1	Keio collection
SS996	Δ(attB)::psulA-gfp	[35]
JC19328	Δ(recA-srl)306::Tn10	[34]
SS8872	Δ(recB)100::kan	Sandler Lab
SS8775	Δ(recBCD)::kan	Sandler Lab
SS1448	priA2::kan Δ(attB)::psulA-gfp	[35]
SS1411	zji-202::Tn10 dnaT822 Δ(attB)::psulA-gfp	[35]
SS1443	Δ(priB)302 Δ(attB)::psulA-gfp	Sandler Lab
SS3403	priC303::kan Δ(attB)::sulAp-gfp	Sandler Lab
SS2357	Δ(polA)501::kan	Sandler Lab
SS3116	priA301 Δ(attB)::psulA-gfp	Sandler Lab
SS1441	priA300 Δ(attB)::psulA-gfp	[66]
SS2400	dnaC809,820 psulA-gfp thr+	Sandler Lab
SS7087	priA2::kan dnaC809,820 Δ(attB)::psulA-gfp	Sandler Lab
SS7086	zji-202::Tn10 dnaC809,820 dnaT822 Δ(attB)::psulA-gfp	Sandler Lab
SS767	malE::Tn10 lexA3	[65]
SS749	Δ(recA-srl)306::Tn10 priA2::kan	Sandler Lab
SS768	priA2::kan lexA3 malE::Tn10	[65]

All strains listed as being from the Sandler lab are isogenic and are derivatives of JC13509. The genotype of JC13509 is sulB103 lacMS286 φ80dIIlacBK1 argE3 hi-4 thi-1 xyl-5 mtl-1 rpsL31 tsx. The lacMS286 φ80dIIlacBK1 denote two partial non-overlapping deletions of the lac operon [68], [69].