Fusobacterium nucleatum was purchased from American Type Culture Collection (ATCC, Manassas, VA, USA; #25586). WT Fusobacterium nucleatum and FadA−/− Fusobacterium nucleatum were cultured in Columbia blood agar with 5 μg/mL heme, 5% desalted sheep blood, and 1 μg/mL vitamin K1 (Sigma-Aldrich, St. Louis, MO, USA) in a 37 °C anaerobic glove box containing 85% N2, 10% H2 and 5% CO2 [30 (link)]. Escherichia coli (MG1655, ATCC, Manassas, VA, USA) was propagated in Luria Bertani medium (BD Biosciences, Franklin Lakes, NJ, USA) at 37 °C in an aerobic incubator.
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