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Phylogenetic relationship of operons belonging to the κ-fimbriae. The branch of the FUP tree representing κ-fimbriae is shown on the left. Numbers at the end of each branch of the phylogenetic tree correspond to the numbers given for each operon in the center. The gene order for each operon is shown on the right (arrows). The predicted functions for each gene product and the sequence homologies to protein families are indicated in the legend at the bottom.
