Amino acid sequence similarities between Omp35 of MR-1 and the top matches as identified by BLAST. Alignments were done using the ClustalW function of MacVector software. Identical residues are indicated by uppercase letters, analogous residues by lowercase letters, and unmatched residues by dots. Alignments were facilitated by introducing gaps (-). The numbers on the right indicate the relative numbering of residues within each immature protein; the total number of residues in each protein is shown in parentheses at the end of each sequence. Comparative sequences and their accession numbers are as follows: PorA N men (Neisseria meningitidis PorA, OM porin precursor, GenBank AF226349_1); SO1557 MR-1 (S. oneidensis MR-1, putative OM porin, TIGR genome locus SO1557); SO1420 MR-1 (S. oneidensis MR-1, putative OM porin, TIGR genome locus SO1420); IfcO S fri (S. frigidimarina, putative OM porin, GenBank AJ236923).