┌─ Escherichia coli (11-102/114) MS 115-1   
┌─────────────────────────────────────────┴─── Escherichia coli (11-102/113) MS 21-1   
│                                                                  ┌─ Escherichia coli (25-113/119) B088 (46)  
┤                                                                 ┌┴─ Escherichia coli (4-92/98) SE11   
│                                                     ┌───────────┴─ Escherichia coli (4-92/107) M718 (4)  
│          ┌──────────────────────────────────────────┴─────────── Escherichia coli (5-92/107) MS 115-1   
└──────────┤                    ┌─ Escherichia coli SMS-3-5   
           │                    │   ┌─ Escherichia coli 1044A (25)  
           └────────────────────┤  ┌┴─ Escherichia coli B185   
                                │ ┌┴─ Escherichia coli 042   
                                └┬┴─ Escherichia coli K12 (81)  
                                 └┬─ Escherichia coli 2362-75 (2)  
                                  └┬─ Escherichia coli NC101   
                                   └┬─ Escherichia coli 536 (7)  
                                    └┬─ Escherichia coli (1-98/99) 83972 (5)  
                                     └─ Escherichia coli SE15   
  

  
Transcriptional regulator, ArsR family
 (14)
  
Hypothetical transcriptional regulator ygaV
 (2)