FIG. 3.

Primary structure alignment of XAC0095 with its homologs in X. axonopodis pv. citri (XAC0095b and XAC0095c) and in X. campestris pv. campestris (XCC0067, XCC1070, and XCC2900). Amino acid positions with identical (*), highly conserved (:), and less-well-conserved (.) residues are indicated. Two blocks of particularly well conserved residues are indicated by thin horizontal lines. Both blocks contain conserved heptad pseudorepeats (abcdefg) in which each a and d position is almost invariably a hydrophobic residue. The two heptad repeats are delimited with thick black horizontal lines. The C-terminal block has two hydrophobic heptad repeats superimposed on one another.