A model for the Escherichia coli FtsB/FtsL/FtsQ cell division complex

BMC Structural Biology

Table 1 Interface parameters of the complexes

FtsB:FtsL:FtsQ ^{a, b}	Interface ASA (Å²)	Interface ASA %	% Polar^c	% Non polar^c	% Charged^c	H-bonds/100 Å²	Salt bridges/100 Å²
Trimeric (1:1:1)	1341.32	11.79	30.70	43.60	25.60	0.5	1.90
Tetrameric (1:2:1)	933.29	7.80	23.08	26.92	50.00	0.4	2.68
Tetrameric (2:1:1)	824.55	6.12	26.86	24.53	48.61	0.4	2.11
Hexameric (2:2:2)	4913.82	33.53	26.72	39.66	33.62	0.5	1.34
Mean stable complex ^d		11.2	32.2	39.5	28.2	1	2 - 6

^a The interface parameters were obtained with the PROTORP server for the FtsB/FtsL/FtsQ complex after the molecular dynamic equilibration.
^b The interfaces considered were between the FtsB/FtsL subcomplex and FtsQ. The FtsB and FtsL pair was treated as a single unit.
^c The percentages of each kind of residue consider only the residues at the interface.
^d The data for the mean stable complex were extracted from Reynolds et al. [65]

ISSN: 1472-6807