Fig 3.

Structural model of the TetH monomer from A. hospitalis. (A) Ribbon representation of the eight-bladed β-propeller topology of TetH viewed down the central axis of the disc-shaped molecule. The model is colored according to the secondary structure elements: α-blue, red; β-strands, magenta; coils, gray. (B) TetH model colored according to the electrostatic surface potential following Coulomb's law. The color scale is from −7 (red) to +7 (blue) kcal/(mol · e). The view on the left corresponds to the orientation depicted in panel A, while the one on the right shows a flipside of the molecule. The figure was prepared in UCSF Chimera (5).