┌─────────── Escherichia coli SMS-3-5   
┤    ┌─ Escherichia coli K12 (106)  
└────┤┌──────────────── Escherichia coli MS 84-1   
     └┤                               ┌─ Escherichia coli APEC O1 (5)  
      │                ┌──────────────┴──────────────── Escherichia coli IHE3034   
      └───────────────┬┴─ Escherichia coli 536 (8)  
                      └──────────────┬─────────────────────────────── Escherichia coli MS 21-1   
                                     └┬──────────────── Escherichia coli NC101   
                                      └─ Escherichia coli 2362-75 (3)  
  

  
ABC transport system, permease component YbhS
 (9)