EIF2AK4 and infection: For that, we generated Tg/eif2ak4+/+ and Tg/eif2ak4−/− mice and infected them with the AIEC LF82 strain or the K12 MG1655 strain using the same infection protocol as applied for eif2ak4+/+ and eif2ak4−/− mice, in which antibiotics were not used.