┌─ Escherichia coli (27-289/291) K12 (93)  
                                                                 ┌┴─ Escherichia coli (27-289/291) SMS-3-5   
                                                                ┌┴┬─ fig|1040638.4.peg.2838 O104:H4 (27-289/291) str. LB226692 (9)  
                                                               ┌┤ └─ Escherichia coli (27-289/291) E110019 (1)  
                                                              ┌┤└─ Escherichia coli (27-289/291) 1044A (23)  
┌─────────────────────────────────────────────────────────────┤└─ Escherichia coli (27-289/291) O157:H7 EDL933   
│                                                             └─ Escherichia coli (27-289/291) O157:H7 EDL933   
│                                                                 ┌─ Escherichia coli (15-295/295) O157:H7 str. EC4486 (24)  
│                                                                ┌┴─ Escherichia coli O55:H7 str. CB9615   
│                                                               ┌┴─ Escherichia coli O83:H1 str. NRG 857C (1)  
│                                                              ┌┴─ Escherichia coli K12 (39)  
│                                                             ┌┴┬─ Escherichia coli M718   
│                                                            ┌┤ └─ Escherichia coli MS 21-1   
┤                                                            │└┬─ Escherichia coli WV_060327   
│                                                            │ └┬─ Escherichia coli (15-295/295) B088 (31)  
│                                                           ┌┤  └┬─ Escherichia coli EC4100B   
│                                                           ││   └─ Escherichia coli MS 107-1   
│                                                          ┌┤└─ Escherichia coli FVEC1302 (3)  
│                                                          │└┬─ Escherichia coli B str. REL606 (2)  
│                                                         ┌┤ └─ Escherichia coli (15-295/295) E2348/69 (16)  
│                                                         │└┬─ Escherichia coli SMS-3-5   
│              ┌──────────────────────────────────────────┤ └─ Escherichia coli ATCC 8739 (1)  
└──────────────┤                                          └─ Escherichia coli TA143   
               │                                                  ┌─ Escherichia coli (17-256/264) SMS-3-5   
               └──────────────────────────────────────────────────┤┌─ Escherichia coli (17-256/264) 042 (5)  
                                                                  ││┌─ Escherichia coli (17-256/264) ATCC 8739 (1)  
                                                                  └┤│   ┌─ Escherichia coli (17-256/264) 83972 (3)  
                                                                   ││  ┌┴─ Escherichia coli (17-256/264) E24377A (7)  
                                                                   └┤ ┌┴┬─ Escherichia coli (17-256/264) ED1a (11)  
                                                                    │┌┤ └─ Escherichia coli (17-256/264) TA280   
                                                                    ││└─ Escherichia coli (17-256/264) K12 (37)  
                                                                    └┤ ┌─ Escherichia coli (17-256/264) M605   
                                                                     │┌┴─ Escherichia coli (17-256/264) H299   
                                                                     └┤ ┌─ Escherichia coli (17-256/264) 1125A (12)  
                                                                      └┬┴─ Escherichia coli (17-256/264) MS 124-1 (1)  
                                                                       └┬─ fig|1040638.4.peg.4185 O104:H4 (17-256/264) str. LB226692 (29)  
                                                                        └┬─ Escherichia coli (17-256/264) E22 (1)  
                                                                         └┬─ Escherichia coli (17-256/264) O157:H7 EDL933   
                                                                          └─ Escherichia coli (17-256/264) O103:H2 str. 12009   
  
Putrescine transport system permease protein PotI (TC 3.A.1.11.2) (16)
Spermidine Putrescine ABC transporter permease component potC (TC_3.A.1.11.1) (15)
Sulfate transport system permease protein CysW (6)
Others (2)