TABLE 2.

Competition assays with Gifsy-2 deletion strains

Relevant genotypea	Strain	Median CIb	No. of micec	Pd
Δ(Gifsy-2)::Km	JS223	0.0068	4	<0.0005
sodCI::aph	JS192	0.15	9	<0.0005
Δ(attL-gftO)::Km	JS224	0.70	3	NS
Δ(gftO-attR)::Km	JS225	0.0082	2	0.001
ΔailT::Cm	JS227	0.94	4	NS
Δ(G-2 B)::Km	JS159	0.15	9	<0.0005
Δ(stfT-sseI)::Km	JS229	0.87	6	NS
Δ(gtgC-attR)::Km	JS230	0.18	3	0.001
ΔgtgC::Km	JS228	0.72	5	NS
ΔgtgD::Km	MA6938	0.75	6	NS
ΔgtgF::Km	MA7075	1.36	5	NS
ΔgtgEF::Km	JS221	0.16	10	<0.0005
ΔgtgE::Km	MA7073	0.14	5	0.0006

^aAll strains competed against wild-type 14028 except for strain MA7073, which competed against strain MA6054 (ara-907 araD901::MudJ).

^bCI was calculated according to the formula in Materials and Methods, with the mutant as strain A and the wild type as strain B.

^cAll assays were performed i.p. using BALB/c mice.

^dStudent's t test was used to compare output versus inoculum. NS, not significant.