Fig. 4

Putative structure of the developed MtrF versions. a MtrF_sol∆22–182, b MtrF_sol∆22–182_∆322–460, c MtrF_solΔ22–182_Δ322–460_Linker1, d MtrF_solΔ22–182_ Δ322–460_Linker2. The linker bridges the gap between domains D2 and D4. 3D protein structures were imaged with the molecular visualization system PyMOL