Fig. 5. Working model for the transport mechanism of UlaA.
Outward-facing, occluded, and inward-facing structures of UlaA revealed the complete transport cycle of EIIC of the PTS-AG family. The stationary part of V motif 1 is shown in cyan; the swing part of V motif 1 in palecyan, core 1 in yellow, the stationary part of V motif 2 in magenta, the swing part of V motif 2 in pink, the core 2 in orange and TM11 in gray. Vitamin C is shown in ball-and-stick representation