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Table 3 Results of the invasion assay

From: Molecular adaptation of a plant-bacterium outer membrane protease towards plague virulence factor Pla

E. coliXL1 Average invasion percentage Number of assays Range
pSE380 0,0 33 0-0.3
pMRK1 4,4** 33 0.7-24.8
pMRK4 0,0 9 0-0.05
pMRK417 0,1* 9 0-0.2
pMRK431 0,5 6 0-1.9
pMRK431β1 5,4** 14 0.4-16.3
pMRK4β1L1 0,0 4 0-0.04
pMRK410β1L1 0,1 6 0.02-0.3
pMRK417β1L1 1,2 6 0.04-5.4
pMRK431β2 0,4 5 0.1-0.8
pMRK431β4 0,4 5 0.02-1.2
pMRK431β5 0,3 5 0.03-0.9
pMRK431β8+9 0,1 5 0.02-0.2
pMRK431β10 0,2* 6 0.06-0.3
  1. Gentamicin protection assay with the human ECV304 cell line. The results are given as the percentage of the intracellular vs. the total added bacteria. The strains have been compared to E. coli XL1 (pSE380) to calculate significant differences with t-scores. * p < 0.05, ** p < 0.01