Figure 4.

Ab initio models of the different constructs of TraB and of LvhB4. Two orientations, rotated along the long axis, of the best models generated by the program GASBOR of TraB_FL (A); TraB_NT (B); TraB_CT (C) and LvhB4 (D). All TraB models (FL; NT; CT) were generated with an imposed P2 symmetry. The black cross and the dashed-line indicate the P2 symmetry axis between the two monomers in the dimeric model. The double arrow-head dotted-line indicates the maximum dimension (D_max) of each model.