Start End Size(bp) No._of_ORFs No._of_homologs_of_PAI-virulence_genes PAIs_homologous_to_this_region 884706 896227 11522 18 3 LIM (Escherichia coli O157:H7 Sakai) 1800112 1834587 34476 30 5 PAI I APEC-O1 (Escherichia coli APEC O1) PAI I APEC-O1 (Escherichia coli APEC O1) LEE (Escherichia coli RW1374) LEE (Escherichia coli 12009) AGI-3 (Escherichia coli BEN2908) PAI II 536 (Escherichia coli 536) TAI (Escherichia coli O157:H7 EDL933) PAI III 536 (Escherichia coli 536) PAI IV 536 (Escherichia coli 536) PAI V 536 (Escherichia coli 536) PAI II CFT073 (Escherichia coli CFT073) PAI II CFT073 (Escherichia coli CFT073) PAI-I AL862 (Escherichia coli AL862) PAI IV APEC-O1 (Escherichia coli APEC O1) SHI-1 (Shigella flexneri YSH6000T) SHI-1 (Shigella flexneri 2a str. 301) SHI-1 (Shigella flexneri 2a str. 2457T) SRL (Shigella flexneri YSH6000) 3994581 4003115 8535 8 7 SRL (Shigella flexneri YSH6000)