┌─ Escherichia coli 2362-75 (1)  
┌─────────────────┴─ Escherichia coli O127:H6 str. E2348/69   
│                                                            ┌─ Escherichia coli WV_060327   
│                                                     ┌──────┴─────── Escherichia coli 83972 (8)  
│                                       ┌─────────────┴─ Escherichia coli 536 (6)  
┤                         ┌─────────────┴─────── Escherichia coli M605   
│                  ┌──────┴─ Escherichia coli SE15   
│                 ┌┴─ Escherichia coli 101-1 (5)  
│          ┌──────┴─ Escherichia coli B088   
│   ┌──────┴─ Escherichia coli 042 (8)  
└───┤┌─────── Escherichia coli KO11 (2)  
    └┤ ┌────────────── Escherichia coli APEC O1 (5)  
     │┌┴─────── Escherichia coli H736 (1)  
     └┤ ┌────────────── Escherichia coli FVEC1302 (5)  
      └┬┴─────── Escherichia coli B185   
       └┬─ Escherichia coli K12 (46)  
        └┬─────── Escherichia coli EC4100B   
         └──────┬─────── Escherichia coli 1044A (23)  
                └─ Escherichia coli O55:H7 str. CB9615   
  

  
Protein ydhR precursor
 (19)