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Invasion of L. lactis expressing wild type or murinized InlA into Caco-2 (grey bars) or CT-26 (white bars) monolayers. Nisin induced L. lactis cells were invaded (MOI of 25:1) for 1 h before overlaying with gentamicin. Invasion was expressed as average cfu count (with standard deviation) or invasion relative to L. lactis plasmid only (below graph) (n = 3). The graph is representative of the data from three independent experiments.
