┌── Escherichia coli SMS-3-5   
┌────┴──────────────── Escherichia coli IAI39 (1)  
│      ┌── Escherichia coli B185   
┤      │ ┌─ Escherichia coli O55:H7 str. CB9615   
│      │┌┴─ Escherichia coli 1044A (24)  
└──────┤│           ┌─ Escherichia coli MS 145-7   
       ││         ┌─┴─ Escherichia coli B7A (1)  
       ││        ┌┴── Escherichia coli EC4100B   
       ││       ┌┴─ Escherichia coli H591 (3)  
       └┤      ┌┴─ Escherichia coli MS 119-7   
        │  ┌───┴────┬─ Escherichia coli B088 (3)  
        │  │        └─────┬─ Escherichia coli IAI1 (1)  
        │ ┌┤              └─ Escherichia coli TA271   
        │ │└── Escherichia coli MS 115-1 (2)  
        │ │                  ┌─ Escherichia coli 2362-75   
        └─┤         ┌────────┴─ Escherichia coli E2348/69 (1)  
          │  ┌──────┴─┬────────────────────────────────────────────── Escherichia coli SE15   
          │┌─┤        └─────── Escherichia coli M718   
          ││ └─────┬───────────────────── Escherichia coli B354   
          └┤       └───── Escherichia coli MS 69-1   
           │ ┌─ Escherichia coli 53638 (8)  
           │┌┴─── Escherichia coli K12 (12)  
           └┤  ┌─ fig|1040638.4.peg.1313 O104:H4 str. LB226692 (3)  
            │ ┌┴──────── Escherichia coli HS (1)  
            └─┤ ┌─ Escherichia coli B171 (4)  
              └─┤ ┌─ Escherichia coli MS 182-1 (1)  
                └┬┴────── Escherichia coli SE11   
                 └─┬─ Escherichia coli O111:H- str. 11128 (1)  
                   └─ Escherichia coli E110019 (1)  
  

  
Putative frv operon regulatory protein
 (28)
  
 Others 
(1)