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Paired tests evaluating the OMPs expression difference between supernatant and cell-associated fractions of infected I-407 cultures in each strain collection (AIEC and non-AIEC). Values indicate the logarithmic ratio of relative transcript abundance (RTA) of the target sample, being RTA = Efficiency ^(Ct target gene reference strain – Ct target gene sample)/Efficiency ^(Ct constitutive gene reference strain – Ct constitutive gene sample) (Pfaffl, 2001).
