┌─ Escherichia coli (20-287/296) K12 (58)  
                                                            ┌┴─ Escherichia coli (20-287/296) 101-1 (4)  
                                                           ┌┴─ Escherichia coli (20-287/296) H299   
                                                          ┌┴─ Escherichia coli (20-287/296) WV_060327   
  ┌───────────────────────────────────────────────────────┴─ Escherichia coli (20-287/296) B171 (4)  
┌─┤         ┌──────────────────────────────────────────────────────── Escherichia coli (11-267/287) H299 (2)  
│ └─────────┤                                             ┌─ Escherichia coli (6-255/274) ED1a (1)  
│           └────────────────────────────────────────────┬┴─ fig|1040638.4.peg.657 O104:H4 (6-255/274) str. LB226692 (4)  
│                                                        └┬─ Escherichia coli (6-255/274) H299   
│                                                         └─ Escherichia coli (6-255/274) M718   
│                                                                 ┌─ Escherichia coli IAI1 (1)  
│                                                                ┌┴─ Escherichia coli EC4100B   
┤                                                               ┌┴┬─ Escherichia coli (25-306/306) K12 (77)  
│                                                              ┌┤ └─ Escherichia coli (25-306/306) ATCC 8739 (1)  
│                                                             ┌┤└─ Escherichia coli ETEC H10407   
│                                                             │└┬─ Escherichia coli (25-306/306) APEC O1 (15)  
│                                                            ┌┤ └─ Escherichia coli (25-306/306) B171 (11)  
│                                                            │└┬─ Escherichia coli (25-306/306) 042 (15)  
│                   ┌────────────────────────────────────────┤ └┬─ Escherichia coli (25-306/306) E2348/69 (1)  
│                   │                                        │  └─ Escherichia coli NC101   
└───────────────────┤                                        └─ Escherichia coli M718   
                    │                              ┌─ Escherichia coli (4-284/285) TA280   
                    │                              │┌─ Escherichia coli (3-283/284) H299   
                    └──────────────────────────────┤│    ┌─ Escherichia coli (4-284/285) 042 (1)  
                                                   ││   ┌┴─ Escherichia coli (4-284/285) FVEC1302 (3)  
                                                   └┤  ┌┴─ Escherichia coli (4-284/285) MS 21-1   
                                                    │ ┌┴┬─ Escherichia coli (4-284/285) B354   
                                                    │ │ └┬─ Escherichia coli (4-284/285) IAI39 (1)  
                                                    │┌┤  └─ Escherichia coli (4-284/285) SMS-3-5   
                                                    └┤└─ Escherichia coli (3-283/284) MS 69-1   
                                                     │┌─ Escherichia coli (4-284/285) B171 (5)  
                                                     └┤┌─ Escherichia coli (4-284/285) M718   
                                                      └┤┌─ Escherichia coli (4-284/285) 1044A (25)  
                                                       └┤ ┌─ Escherichia coli (4-284/285) MS 115-1   
                                                        │┌┴─ Escherichia coli (4-284/285) HS (1)  
                                                        └┤┌─ Escherichia coli (4-284/285) 1827-70 (2)  
                                                         └┤┌─ Escherichia coli (4-284/285) ATCC 8739 (1)  
                                                          └┤  ┌─ Escherichia coli (4-284/285) 101-1 (4)  
                                                           │ ┌┴─ Escherichia coli (4-284/285) MS 187-1   
                                                           └┬┴─ Escherichia coli (4-284/285) MS 182-1 (3)  
                                                            └┬─ Escherichia coli (4-284/285) B088 (12)  
                                                             └┬─ Escherichia coli (4-284/285) K12 (13)  
                                                              └┬─ fig|1040638.4.peg.2842 O104:H4 (4-284/285) str. LB226692 (8)  
                                                               └┬─ fig|6666666.5357.peg.4677 TY-2482 (4-284/285) strain   
                                                                └─ Escherichia coli (4-284/285) B7A (1)  
  
Sialic acid utilization regulator, RpiR family (15)
Putative transcriptional regulator (10)
Transcriptional regulator, RpiR family (7)
Transcriptional regulator of D-allose utilization, RpiR family (5)
RpiR family transcriptional regulator (3)
hypothetical protein (2)
Others (3)