┬─────────────────────────────────────────────────────────────────── Escherichia coli (1-377/380) B354 (1)  
└──────────────────────────────────────────────────────────────────┬─ Escherichia coli (14-389/389) O55:H7 str. CB9615   
                                                                   └┬─ Escherichia coli K12 (55)  
                                                                    └┬─ fig|1040638.4.peg.3316 O104:H4 str. LB226692 (69)  
                                                                     └┬─ Escherichia coli ED1a (1)  
                                                                      └┬─ Escherichia coli E22 (1)  
                                                                       └─ Escherichia coli TA280   
  
Ribonucleotide reductase of class Ia (aerobic), beta subunit (EC 1.17.4.1) (6)
Others (1)