FIG. 4.

Amino acid sequence alignment of the C-terminal domain of P. multocida NanB (P. mul) and related autotransporter domains from H. influenzae (H. inf), Helicobacter pylori (H. pyl), and E. coli (E. col). Specific conserved residues identified by Loveless and Saier (27) among the putative autotransporter proteins are shown in boldface. Regions predicted by Loveless and Saier to contain transmembrane β-strands are marked with numbered lines. The alignment was generated using the AlignX program of VectorNTI (Informax).