TABLE 1 .

Rates of ¹⁴C-labeled-N-acetylglucosamine transport in X. campestris pv. campestris mutants compared to the wild-type (wt) strain^a

Strain genotype	Gene ID	Transport (% of wt)b
wt		100.0 ± 10.1
ΔnixA	XCC3408	84.6 ± 9.1
ΔnixB	XCC0531	91.4 ± 2.9
ΔnixC	XCC2944	91.6 ± 4.7
ΔnixD	XCC2887	94.0 ± 5.5
ΔnixABCD		90.4 ± 5.6

^aTransport rates were measured 60 min after addition of ¹⁴C-labeled N-acetylglucosamine.

^bValues are means and standard deviations, which were calculated from six independent experiments.