Figure 6

The crystal structure of Tt1808 (1wdj in PDB). Tt1808 is shown in the same orientation and is colored and labeled in the same way as the homology model of all3650 on Figure 3. Two regions of differences between Tt1808 and the model of all3650 are indicated: the N-terminal subdomain has a similar fold, but different orientation (magenta line) and the C-terminal region folds as a β-harpin (cyan line) rather than as an α-helix.