┌─ Escherichia coli (59-741/771) B354   
┌─────────────────────────────────────────────────────────────────┴─ Escherichia coli (59-741/771) MS 145-7   
│                                                                ┌─ Escherichia coli 101-1   
│                                                                │ ┌─ Escherichia coli 53638   
│                                                                │ ├─ Escherichia coli ATCC 8739   
┤                                                                │ ├─ Escherichia coli B str. REL606   
│                                                                │ ├─ Escherichia coli (DE3) BL21(DE3)   
│                                                                │ ├─ Escherichia coli H736   
│                                                                │ ├─ Escherichia coli HS   
│                                                                │ ├─ Escherichia coli MS 146-1   
└────────────────────────────────────────────────────────────────┤┌┼─ Escherichia coli MS 196-1   
                                                                 ││├─ Escherichia coli MS 116-1   
                                                                 ││├─ Escherichia coli HS   
                                                                 ││├─ Escherichia coli ETEC H10407   
                                                                 ││├─ Escherichia coli BL21   
                                                                 ││├─ Escherichia coli ATCC 8739   
                                                                 ││└─ Escherichia coli 53638   
                                                                 ││┌─ Escherichia coli MS 175-1   
                                                                 └┤│  ┌─ Escherichia coli BW2952   
                                                                  ││  ├─ Escherichia coli K12   
                                                                  ││  ├─ Escherichia coli str. K-12 substr. DH10B   
                                                                  ││  ├─ Escherichia coli str. K-12 substr. MG1655   
                                                                  ││ ┌┼─ Escherichia coli str. K-12 substr. MG1655   
                                                                  ││ │├─ Escherichia coli str. K-12 substr. DH10B   
                                                                  ││┌┤├─ Escherichia coli W3110   
                                                                  ││││└─ Escherichia coli DH1   
                                                                  └┤│└─ Escherichia coli MS 187-1   
                                                                   ││┌─ Escherichia coli B185   
                                                                   │││         ┌─ fig|1040638.4.peg.3084 O104:H4 str. LB226692   
                                                                   │││         ├─ Escherichia coli 55989   
                                                                   │││        ┌┼─ Escherichia coli E110019   
                                                                   │││        │├─ Escherichia coli E110019   
                                                                   │││       ┌┤└─ Escherichia coli 55989   
                                                                   │││       ││┌─ Escherichia coli IAI1   
                                                                   │││       │└┼─ Escherichia coli MS 107-1   
                                                                   │││      ┌┤ └─ Escherichia coli IAI1   
                                                                   └┤│      ││┌─ Escherichia coli H591   
                                                                    ││     ┌┤└┼─ Escherichia coli SE11   
                                                                    ││     ││ └─ Escherichia coli B088   
                                                                    ││     │└─ Escherichia coli EC4100B   
                                                                    ││    ┌┤ ┌─ Escherichia coli O111:H- str. 11128   
                                                                    ││    ││┌┴─ Escherichia coli O26:H11 str. 11368   
                                                                    ││    │└┤┌─ Escherichia coli B7A   
                                                                    ││    │ └┼─ Escherichia coli MS 145-7   
                                                                    ││    │  └─ Escherichia coli B7A   
                                                                    ││   ┌┤  ┌─ Escherichia coli B171   
                                                                    ││   ││ ┌┴─ Escherichia coli B171   
                                                                    ││   ││┌┴┬─ Escherichia coli E24377A   
                                                                    └┤   │││ └─ Escherichia coli E24377A   
                                                                     │   │└┤┌─ Escherichia coli E22   
                                                                     │  ┌┤ │├─ Escherichia coli MS 78-1   
                                                                     │  ││ └┼─ Escherichia coli O103:H2 str. 12009   
                                                                     │  ││  ├─ Escherichia coli MS 182-1   
                                                                     │ ┌┤│  └─ Escherichia coli E22   
                                                                     │ ││└─ Escherichia coli TA271   
                                                                     │ ││┌─ Escherichia coli W   
                                                                     │┌┤└┼─ Escherichia coli W   
                                                                     │││ └─ Escherichia coli KO11   
                                                                     ││└┬─ Escherichia coli MS 115-1   
                                                                     ││ └┬─ Escherichia coli MS 84-1   
                                                                     ││  └─ Escherichia coli MS 124-1   
                                                                     ││  ┌─ Escherichia coli 1044A   
                                                                     ││  ├─ Escherichia coli 1212A   
                                                                     ││  ├─ Escherichia coli O157:H7   
                                                                     ││  ├─ Escherichia coli O157:H7 EDL933   
                                                                     ││  ├─ Escherichia coli O157:H7 str. EC4042   
                                                                     ││  ├─ Escherichia coli O157:H7 str. EC4076   
                                                                     ││  ├─ Escherichia coli O157:H7 str. EC4115   
                                                                     ││  ├─ Escherichia coli O157:H7 str. EC4206   
                                                                     ││  ├─ Escherichia coli O157:H7 str. EC4486   
                                                                     └┤  ├─ Escherichia coli O157:H7 str. EC508   
                                                                      │  ├─ Escherichia coli O157:H7 str. TW14359   
                                                                      │ ┌┼─ Escherichia coli O55:H7 str. CB9615   
                                                                      │ │├─ Escherichia coli O157:H7 str. TW14588   
                                                                      │ │├─ Escherichia coli O157:H7 str. Sakai   
                                                                      │ │├─ Escherichia coli O157:H7 str. EC4501   
                                                                      │ │├─ Escherichia coli O157:H7 str. EC4401   
                                                                      │ │├─ Escherichia coli O157:H7 str. EC4196   
                                                                      │┌┤├─ Escherichia coli O157:H7 str. EC4113   
                                                                      │││├─ Escherichia coli O157:H7 str. EC4045   
                                                                      │││├─ Escherichia coli O157:H7 str. EC4024   
                                                                      │││├─ Escherichia coli O157:H7 EDL933   
                                                                      │││├─ Escherichia coli 536A   
                                                                      │││└─ Escherichia coli 1125A   
                                                                      └┤└┬─ Escherichia coli O157:H7 str. FRIK966   
                                                                       │ └─ Escherichia coli O157:H7 str. FRIK2000   
                                                                       │┌─ Escherichia coli M718   
                                                                       ││ ┌─ Escherichia coli TA143   
                                                                       ││┌┴─ Escherichia coli TA280   
                                                                       │││      ┌─ Escherichia coli FVEC1302   
                                                                       │││      ├─ Escherichia coli MS 198-1   
                                                                       └┤│     ┌┼─ Escherichia coli UMN026   
                                                                        ││    ┌┤└─ Escherichia coli FVEC1412   
                                                                        ││    │└┬─ Escherichia coli 042   
                                                                        ││   ┌┤ └─ Escherichia coli 042   
                                                                        ││  ┌┤└─ Escherichia coli MS 69-1   
                                                                        ││ ┌┤└─ Escherichia coli B354   
                                                                        └┤ │└─ Escherichia coli H299   
                                                                         │┌┤┌─ Escherichia coli ABU 83972   
                                                                         │││├─ Escherichia coli CFT073   
                                                                         ││└┼─ Escherichia coli MS 45-1   
                                                                         ││ ├─ Escherichia coli MS 185-1   
                                                                         ││ ├─ Escherichia coli CFT073   
                                                                         ││ └─ Escherichia coli 83972   
                                                                         ││   ┌─ Escherichia coli 2362-75   
                                                                         ││   ├─ Escherichia coli APEC O1   
                                                                         ││   ├─ Escherichia coli IHE3034   
                                                                         └┤   ├─ Escherichia coli S88   
                                                                          │   ├─ Escherichia coli UTI89   
                                                                          │  ┌┼─ Escherichia coli UTI89   
                                                                          │  │├─ Escherichia coli UM146   
                                                                          │  │├─ Escherichia coli O127:H6 str. E2348/69   
                                                                          │ ┌┤├─ Escherichia coli E2348/69   
                                                                          │ ││└─ Escherichia coli APEC O1   
                                                                          │┌┤└─ Escherichia coli O83:H1 str. NRG 857C   
                                                                          ││└─ Escherichia coli NC101   
                                                                          └┤ ┌─ Escherichia coli SMS-3-5   
                                                                           │┌┴─ Escherichia coli MS 21-1   
                                                                           ││  ┌─ Escherichia coli IAI39   
                                                                           └┤ ┌┴─ Escherichia coli IAI39   
                                                                            │┌┴─ Escherichia coli TA206   
                                                                            └┤┌─ Escherichia coli M605   
                                                                             └┤┌─ Escherichia coli SE15   
                                                                              └┤ ┌─ Escherichia coli ED1a   
                                                                               │┌┴─ Escherichia coli ED1a   
                                                                               └┤ ┌─ Escherichia coli 536   
                                                                                │┌┴─ Escherichia coli 536   
                                                                                └┤┌─ Escherichia coli F11   
                                                                                 └┼─ Escherichia coli MS 200-1   
                                                                                  └─ Escherichia coli F11   
  
Ribonucleotide reductase of class Ib (aerobic), alpha subunit (EC 1.17.4.1) (127)
Ribonucleotide reductase of class Ia (aerobic), alpha subunit (EC 1.17.4.1) (2)
Others (1)