┌─ Escherichia coli B7A   
┬────────────────────────────────────────────────────────────────┴─── Escherichia coli (10-272/272) TA280   
└─────────────────────────────────────────────────────────────────┬─ Escherichia coli B354   
                                                                  └┬─ fig|1040638.4.peg.5553 O104:H4 str. LB226692 (52)  
                                                                   └┬─ Escherichia coli 1044A (25)  
                                                                    └┬─ Escherichia coli CFT073 (1)  
                                                                     └─ Escherichia coli K12 (50)  
  

  
Methionine ABC transporter substrate-binding protein
 (6)
  
 Others 
(1)