FIG. 2.

Comparative genome maps of the prophage-like elements detected in Bifidobacterium genomes. Genes sharing similarity are linked. Probable functions of encoded proteins identified by bioinformatic analysis are indicated. The modular structure is color coded: red, lysogeny; green, DNA packaging and head; blue, tail; mauve, tail fiber; violet, lysis module; yellow, transcriptional regulator; orange, DNA replication; gray, unknown genes; black, genes similar to other functionally unknown bacteriophage genes. Vertical blue lines, tRNA genes.