┌───────────────────────────────────────────────────────────────── Escherichia coli 1827-70 (1)  
┌──┴──────────────────── Escherichia coli B171 (4)  
│                                   ┌─ Escherichia coli TA280   
│                               ┌───┴──────── Escherichia coli SE15   
│                           ┌───┴─ Escherichia coli 83972 (1)  
│                          ┌┴───────┬──── Escherichia coli UM146   
│                         ┌┤        └─ Escherichia coli 536 (10)  
│                        ┌┤└─ Escherichia coli KO11 (2)  
┤                        │└┬──── Escherichia coli 2362-75   
│                       ┌┤ └──── Escherichia coli B088   
│                       │└───┬──────── Escherichia coli 53638 (1)  
│                      ┌┤    └┬──── Escherichia coli ETEC H10407   
│                      ││     └─ Escherichia coli H591   
│                      │└─ Escherichia coli B7A (3)  
│                      │                 ┌──── Escherichia coli 101-1 (1)  
│                      │             ┌───┴─ Escherichia coli ATCC 8739 (2)  
└──────────────────────┤            ┌┴───┬──── Escherichia coli MS 107-1   
                       │           ┌┤    └─ Escherichia coli B185   
                       │   ┌───────┤└─ Escherichia coli EC4100B   
                       │   │       └───┬─ Escherichia coli MS 78-1   
                       │   │           └───┬──────── Escherichia coli S88   
                       └───┤               └─ Escherichia coli O55:H7 str. CB9615   
                           │┌─ Escherichia coli 1044A (36)  
                           ││ ┌──── fig|1040638.4.peg.3601 O104:H4 str. LB226692 (3)  
                           └┤┌┴──── Escherichia coli TA206   
                            ││         ┌─ Escherichia coli M718   
                            └┤ ┌───────┴──── Escherichia coli WV_060327   
                             │┌┴──────── Escherichia coli MS 185-1   
                             └┤    ┌──────────────── Escherichia coli MS 182-1   
                              │┌───┴──── Escherichia coli ED1a (1)  
                              └┤   ┌──── Escherichia coli IAI39 (1)  
                               └───┤   ┌──── Escherichia coli TA271   
                                   └───┤┌──── Escherichia coli K12 (16)  
                                       └┤┌─ Escherichia coli MS 119-7   
                                        └┤┌──────────── Escherichia coli 042 (5)  
                                         └┤                        ┌──── Escherichia coli B354   
                                          └────────────────────┬───┴──── Escherichia coli IAI1 (1)  
                                                               └┬──────── Escherichia coli H736 (4)  
                                                                └──── Escherichia coli MS 124-1 (2)  
  
Phosphoribosyl-AMP cyclohydrolase (EC 3.5.4.19) / Phosphoribosyl-ATP pyrophosphatase (EC 3.6.1.31) (38)
Others (1)