Figure 3

FtsB/FtsL complex models. Modelled structures of the FtsB/FtsL complex before the addition of FtsQ. In blue FtsB, in green FtsL. A. Heterodimer FtsB/FtsL; B. Heterotetramer 2FtsB/2FtsL. The insets are top views (from C-terminal to N-terminal) of each model. The residues of the position a in the coiled-coil are shown as sticks, coloured by atom type (carbon in grey, oxygen in red, nitrogen in blue). The majority of these residues are leucines (see the text for explanation). The range of residues modelled is 25 to 88 for FtsB, and 61 to 109 for FtsL. N- and C-terminals are indicated.