┌─ Escherichia coli (19-280/281) CFT073 (6)  
                                                                 ┌┴─ Escherichia coli (19-280/281) 83972 (1)  
                                                                ┌┴─ Escherichia coli (19-280/281) M605 (2)  
                                                               ┌┴─ Escherichia coli (19-280/281) 2362-75 (16)  
    ┌──────────────────────────────────────────────────────────┴─ Escherichia coli (19-280/281) S88   
┌───┤                                        ┌─ fig|1040638.4.peg.657 O104:H4 (8-255/274) str. LB226692 (4)  
│   └───────────────────────────────────────┬┴─ Escherichia coli (8-255/274) ED1a (1)  
│                                           └┬─ Escherichia coli (8-269/274) H299   
┤                                            └─ Escherichia coli (8-269/274) M718   
│ ┌────────────────────────────────────────── Escherichia coli (9-285/285) O157:H7 str. EC4024   
│ │ ┌───────────────────────────────────────────────── Escherichia coli (18-268/287) H299 (2)  
│ │ │                                                   ┌─ Escherichia coli (28-272/296) H299   
└─┤ │                                                  ┌┴─ Escherichia coli (28-272/296) B171 (4)  
  │ │                                                 ┌┴─ Escherichia coli (28-272/296) 101-1 (4)  
  │ │                                                ┌┴─ Escherichia coli (28-272/296) K12 (58)  
  └─┤  ┌─────────────────────────────────────────────┴─ Escherichia coli (28-272/296) WV_060327   
    │  │                                                                ┌─ Escherichia coli (4-281/282) ETEC H10407   
    │  │                                                               ┌┴─ Escherichia coli (4-281/282) EC4100B   
    │  │                                                              ┌┴─ Escherichia coli (4-281/282) IAI1 (1)  
    │  │                                                             ┌┴┬─ Escherichia coli (28-305/306) B171 (11)  
    └──┤                                                            ┌┤ └─ Escherichia coli (28-305/306) ATCC 8739 (1)  
       │                                                           ┌┤└─ Escherichia coli (28-305/306) K12 (77)  
       │                                                          ┌┤└─ Escherichia coli (28-305/306) APEC O1 (15)  
       │                                                          │└┬─ Escherichia coli (28-305/306) 042 (15)  
       │                    ┌─────────────────────────────────────┤ └┬─ Escherichia coli (4-281/282) NC101   
       │                    │                                     │  └─ Escherichia coli (28-305/306) E2348/69 (1)  
       └────────────────────┤                                     └─ Escherichia coli (4-281/282) M718   
                            │                    ┌─ Escherichia coli TA280   
                            │                   ┌┴─ Escherichia coli H299   
                            └───────────────────┤┌─ Escherichia coli MS 69-1   
                                                ││  ┌─ Escherichia coli SMS-3-5   
                                                └┤ ┌┴─ Escherichia coli IAI39 (1)  
                                                 │┌┴─ Escherichia coli B354   
                                                 ││  ┌─ Escherichia coli 042 (1)  
                                                 └┤ ┌┴─ Escherichia coli FVEC1302 (3)  
                                                  │┌┴─ Escherichia coli MS 21-1   
                                                  └┤┌─ Escherichia coli MS 115-1   
                                                   └┤┌─ Escherichia coli HS (1)  
                                                    └┤┌─ Escherichia coli B171 (5)  
                                                     └┤ ┌─ Escherichia coli M718   
                                                      │┌┴─ Escherichia coli 1044A (25)  
                                                      └┤ ┌─ Escherichia coli 1827-70 (2)  
                                                       │┌┴─ Escherichia coli ATCC 8739 (1)  
                                                       └┤  ┌─ Escherichia coli 101-1 (4)  
                                                        │ ┌┴─ Escherichia coli MS 187-1   
                                                        └┬┴─ Escherichia coli MS 182-1 (3)  
                                                         └┬─ Escherichia coli K12 (13)  
                                                          └┬─ Escherichia coli B088 (12)  
                                                           └┬─ fig|6666666.5357.peg.4677 TY-2482 strain   
                                                            └┬─ fig|1040638.4.peg.2842 O104:H4 str. LB226692 (8)  
                                                             └─ Escherichia coli B7A (1)  
  
Sialic acid utilization regulator, RpiR family (20)
Putative transcriptional regulator (10)
Transcriptional regulator, RpiR family (8)
Transcriptional regulator of D-allose utilization, RpiR family (5)
RpiR family transcriptional regulator (3)
hypothetical protein (2)
Others (3)