┌─────────── Escherichia coli UTI89 (1)  
                                 ┌──────────┴─ Escherichia coli APEC O1 (4)  
                                ┌┴─────────── Escherichia coli SE15   
                               ┌┴─ Escherichia coli 2362-75 (20)  
┌──────────────────────────────┴─────────── Escherichia coli TA206   
┤                                ┌─ Escherichia coli 1044A (24)  
│           ┌────────────────────┴─────────── Escherichia coli O55:H7 str. CB9615   
└───────────┤┌─────────── Escherichia coli O111:H- str. 11128 (1)  
            └┤            ┌─ Escherichia coli 042 (7)  
             │           ┌┴───────────────────── Escherichia coli B185   
             └┬──────────┴─────────── Escherichia coli TA280   
              └──────────┬─ Escherichia coli MS 69-1   
                         └──────────┬─────────── Escherichia coli MS 107-1   
                                    └┬─────────── Escherichia coli EC4100B   
                                     └┬─ Escherichia coli K12 (52)  
                                      └┬───────────────────── Escherichia coli M718   
                                       └────────────────────┬─────────── Escherichia coli SMS-3-5   
                                                            └─ Escherichia coli IAI39 (2)  
  

  
N-acetyl-gamma-glutamyl-phosphate reductase (EC 1.2.1.38)
 (18)