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Table 1 The effect of RecA and RecA-GFP on genetic recombination.

From: A novel role for RecA under non-stress: promotion of swarming motility in Escherichia coli K-12

Strain Recombination frequency Relative recombination
recA + (pCA24N) 2.3 ± 1.1 × 10-2 1.0
ΔrecA (pCA24N) 6.8 ± 2.3 × 10-7 2.9 × 10-5
ΔrecA (pRecA-Htg) 8.5 ± 3.2 × 10-3 0.36
ΔrecA (pRecA-GFP) 7.4 ± 4.5 × 10-6 3.2 × 10-4
  1. Matings were performed as described in Methods. The recombination frequency is the number of transconjugants [CmR, KmR] relative to the number of donor cells. Relative recombination indicates recombination values relative to MG1655 recA+ (pCA24N). Results represent the average of three independent measurements.