┌─ Escherichia coli (91-311/312) M605 (1)  
                                                                      ┌┴─ Escherichia coli (91-311/312) 2362-75 (27)  
                                                                     ┌┴┬─ Escherichia coli (91-312/312) IAI1 (1)  
                                                                    ┌┤ └─ Escherichia coli (91-312/312) MS 116-1 (1)  
                                                                   ┌┤└─ Escherichia coli (91-312/312) K12 (96)  
                                                                   │└┬─ Escherichia coli (91-312/312) B354   
                      ┌────────────────────────────────────────────┤ └─ Escherichia coli (91-312/312) MS 21-1   
┌─────────────────────┤                                            └─ Escherichia coli (91-312/312) O26:H11 str. 11368   
┤                     └─────────────────────────────────────── Escherichia coli (103-303/309) 53638 (1)  
│                                                                  ┌─ Escherichia coli (96-296/302) HS (1)  
└──────────────────────────────────────────────────────────────────┤ ┌─ Escherichia coli (96-296/302) B354 (3)  
                                                                   │┌┴─ Escherichia coli (96-296/302) 042 (7)  
                                                                   └┤┌─ Escherichia coli (96-296/302) K12 (7)  
                                                                    └┤┌─ Escherichia coli (96-302/302) M718   
                                                                     └┤ ┌─ fig|6666666.5357.peg.1333 TY-2482 (96-296/302) strain (73)  
                                                                      └┬┴─ Escherichia coli (96-296/302) B7A (2)  
                                                                       └┬─ Escherichia coli (96-296/302) E110019 (1)  
                                                                        └─ Escherichia coli (96-296/302) M605   
  
Regulatory protein (induces abgABT, used to catabolize p-aminobenzoyl-glutamate) (8)
Threonine catabolic operon transcriptional activator TdcA (8)
HTH-type transcriptional regulator tdcA (1)
Others (1)