FIGURE 3. Crystal packing of F41 in two orthogonal views.
From the following article:
Structure of the bacterial flagellar protofilament and implications for a switch for supercoiling
Fadel A. Samatey, Katsumi Imada, Shigehiro Nagashima, Ferenc Vonderviszt, Takashi Kumasaka, Masaki Yamamoto and Keiichi Namba
Nature 410, 331-337(15 March 2001)
doi:10.1038/35066504
a, The b–c plane viewed down the a axis. b, The a–c plane viewed down the b axis. Each array of the F41 molecules along the a axis, which has been identified as the protofilament of the flagellar filament, is coloured red, yellow and green. The repeat distances are labelled. Antiparallel packing of the protofilaments by the P21 symmetry of the crystal is clearly shown. Mutation sites that affect the supercoiling are also labelled with side-chain atoms shown in CPK representation. Mutations are coloured blue for L-type, red for R-type, and black for curly. Prepared with MOLSCRIPT44 and RASTER3D45.
