┌─ Escherichia coli O157:H7 str. EC4401   
                        ┌──────────────┴─ Escherichia coli O157:H7 str. EC4486   
                       ┌┴──────────────┬──────────────── Escherichia coli 042 (1)  
                      ┌┤               └─ Escherichia coli ETEC H10407 (2)  
                     ┌┤└─ Escherichia coli 1044A (23)  
                     │└┬─ Escherichia coli O157:H7 EDL933 (1)  
     ┌───────────────┤ └──────────────────────────────┬──────────────── Escherichia coli K12 (3)  
     │               │                                └─ Escherichia coli 101-1 (5)  
     │               └──┬─────────────── Escherichia coli H736   
    ┌┤                  └────────────┬──────────────── Escherichia coli APEC O1 (6)  
    ││                               └─ Escherichia coli TA280   
   ┌┤└─────────────────────────────────────────────── Escherichia coli MS 69-1   
   │└─ Escherichia coli 2362-75 (15)  
  ┌┤┌──────────────── Escherichia coli E2348/69 (1)  
  │└┤               ┌─────────────── Escherichia coli E24377A (5)  
  │ └──────────────┬┴─ Escherichia coli SMS-3-5   
  │                └┬─ Escherichia coli 1827-70 (10)  
┌─┤                 └┬─────────────── Escherichia coli HS (1)  
│ │                  └┬──────────────── Escherichia coli MS 78-1   
│ │                   └──────────────── Escherichia coli MS 107-1   
┤ └───────────────┬──────────────── Escherichia coli FVEC1302 (2)  
│                 └──────────────┬─ Escherichia coli MS 119-7   
│                                └──────────────── fig|1040638.4.peg.3505 O104:H4 str. LB226692 (11)  
│            ┌─────────────── Escherichia coli WV_060327   
└────────────┤┌──────────────── Escherichia coli 83972 (2)  
             └┤ ┌──────────────── Escherichia coli M605   
              │┌┴──────────────── Escherichia coli MS 200-1   
              └┤ ┌─────────────────────────────── Escherichia coli 536   
               └┬┴─────────────────────────────── Escherichia coli SE15   
                └┬─ Escherichia coli IAI39 (2)  
                 └┬──────────────── Escherichia coli F11 (1)  
                  └───────────────┬─ Escherichia coli TA206   
                                  └─ Escherichia coli CFT073 (4)  
  

  
Putative sulfite oxidase subunit YedY
 (23)
  
hypothetical protein
 (7)
  
Sulfite oxidase and related enzymes
 (2)
  
 Others 
(1)