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Alignments of the A. hydrophila AH-3 porin II sequence with sequences of PhoE from Enterobacter aerogenes, OmpF from E. coli, and OmpK36 from K. pneumoniae. Protein sequences were derived from nucleotide sequences. Secondary structural motifs are those of OmpF structure. L1 to L8, loops 1 to 8; (in black letters); T1 to T8, turns 1 to 8; β1 to β6, beta strands (in black boxes); ∗, main basic residue conserved in enterobacterial or nonenterobacterial porin (32).
