┌─ Escherichia coli B354   
                                      ┌┴─────────────── Escherichia coli TA143   
                       ┌──────────────┴────────────────────────────── Escherichia coli NC101   
        ┌──────────────┴┬─────────────── Escherichia coli TA206   
       ┌┤               └─ Escherichia coli 2362-75 (26)  
┌──────┤└─────────────── Escherichia coli TA280   
│      └─────────────── Escherichia coli MS 124-1 (1)  
│           ┌─────────────── Escherichia coli IAI39 (1)  
┤          ┌┴─────────────── Escherichia coli M718   
│         ┌┴─ Escherichia coli FVEC1302 (4)  
│        ┌┴─────────────── Escherichia coli ETEC H10407   
│       ┌┴┬─────────────── Escherichia coli K12 (14)  
└───────┤ └─────────────── Escherichia coli MS 21-1   
        │              ┌─────────────── Escherichia coli E110019 (1)  
        └──────────────┤┌─────────────── Escherichia coli MS 115-1   
                       └┤┌─────────────── Escherichia coli (18-234/234) ATCC 8739 (1)  
                        └┤ ┌─────────────── Escherichia coli B str. REL606 (4)  
                         └┬┴─────────────── Escherichia coli E24377A (4)  
                          └┬─ fig|1040638.4.peg.5266 O104:H4 str. LB226692 (56)  
                           └─────────────── Escherichia coli MS 69-1   
  

  
Oxygen-insensitive NAD(P)H nitroreductase (EC 1.-.-.-) / Dihydropteridine reductase (EC 1.5.1.34)
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Oxygen-insensitive NAD(P)H nitroreductase (EC 1.-.-.-) / Dihydropteridine reductase (EC 1.6.99.7)
 (1)
  
 Others 
(1)