FIG. 3.

Alignment of the putative ATP binding proteins involved in circularin A (CirD, CirH) and enterocin AS-48 (AS-48D, BacH) production with LolD, a protein involved in lipoprotein secretion. Identical residues are indicated by an asterisk. Colons and periods indicate conserved and semiconserved amino acid substitutions, respectively, according to the ClustalW grouping of amino acids. Dashes indicate gaps introduced in the sequence to maximize alignment. Walker A, Walker, and ABC transporter B motifs are indicated.