MAN2C1 and infection: To further assess competition against the OligoMM12 microbiota and the ability to cause inflammation, we performed single infections with wild-type SL1344, the quadruple mutant (ΔmanA ΔfruK ΔgalK ΔptsG), or a triple mutant (ΔfruK ΔgalK ΔptsG), which retains a functional manA gene.