┌─ Escherichia coli (20-266/281) WV_060327   
                                                ┌┴─ Escherichia coli (20-266/281) M718   
                                               ┌┴─ Escherichia coli (20-266/281) K12 (73)  
                                              ┌┴─ Escherichia coli (34-280/295) O157:H7 str. EC4486 (24)  
                                             ┌┴┬─ Escherichia coli (20-266/281) EC4100B   
                                            ┌┤ └─ Escherichia coli (20-266/281) O83:H1 str. NRG 857C (1)  
                                            │└┬─ Escherichia coli (20-266/281) TA143   
                                            │ └┬─ Escherichia coli (34-280/295) E2348/69 (19)  
                  ┌─────────────────────────┤  └┬─ Escherichia coli (20-266/281) FVEC1302 (3)  
                  │                         │   └─ Escherichia coli (20-266/281) B str. REL606 (2)  
       ┌──────────┤                         └─ Escherichia coli (20-266/281) MS 107-1   
       │          │                            ┌─ Escherichia coli E22 (1)  
       │          └────────────────────────────┤ ┌─ Escherichia coli 042 (1)  
       │                                       └┬┴─ Escherichia coli O83:H1 str. NRG 857C   
┌──────┤                                        └┬─ Escherichia coli 101-1 (16)  
│      │                                         └┬─ Escherichia coli MS 116-1 (1)  
┤      │                                          └─ Escherichia coli K12 (108)  
│      └───────────────────────────────────────────────────────────── Escherichia coli (12-254/272) MS 146-1   
│                                            ┌─ Escherichia coli (20-263/264) M605   
└────────────────────────────────────────────┤┌─ Escherichia coli (20-263/264) H299   
                                             └┤┌─ Escherichia coli (20-263/264) TA280   
                                              ││  ┌─ Escherichia coli (20-263/264) 83972 (3)  
                                              └┤ ┌┴─ Escherichia coli (20-263/264) APEC O1 (11)  
                                               │┌┴─ Escherichia coli (20-263/264) K12 (38)  
                                               └┤┌─ Escherichia coli (20-263/264) ATCC 8739 (1)  
                                                └┤ ┌─ Escherichia coli (20-263/264) 042 (5)  
                                                 │┌┴─ Escherichia coli (20-263/264) SMS-3-5   
                                                 └┤┌─ Escherichia coli (20-263/264) E24377A (7)  
                                                  └┤┌─ Escherichia coli (20-263/264) MS 124-1 (1)  
                                                   └┤ ┌─ fig|1040638.4.peg.4185 O104:H4 (20-263/264) str. LB226692 (29)  
                                                    │┌┴─ Escherichia coli (20-263/264) E22 (1)  
                                                    └┤ ┌─ Escherichia coli (20-263/264) 1125A (12)  
                                                     └┬┴─ Escherichia coli (20-263/264) O103:H2 str. 12009   
                                                      └┬─ Escherichia coli (20-253/272) O55:H7 str. CB9615   
                                                       └─ Escherichia coli (20-263/264) O157:H7 EDL933   
  
Spermidine Putrescine ABC transporter permease component potC (TC_3.A.1.11.1) (22)
Putrescine transport system permease protein PotI (TC 3.A.1.11.2) (11)
ABC-type transporter, permease component: POPT family (1)
Others (1)