FIG 3.

Comparison of the sialic acid gene cluster of B. breve UCC2003 with corresponding putative sialic acid utilization loci of other bifidobacteria. Each solid arrow represents an open reading frame. The length of each arrow is proportional to the size of the open reading frame, and the gene locus name, which is indicative of its putative function, is shown at the top. Orthologs are the same color. The amino acid sequence identity of each predicted protein to its equivalent protein encoded by B. breve UCC2003, expressed as a percentage, is shown above each arrow.