┌─ Escherichia coli MS 21-1   
        ┌─────────────────────┴──────── Escherichia coli SMS-3-5   
   ┌────┴──────────────────────── Escherichia coli IAI39 (1)  
  ┌┴────────────────┬─ Escherichia coli O55:H7 str. CB9615   
  │                 └───────┬─ Escherichia coli 1125A (8)  
┌─┤                         └─ Escherichia coli 1044A (14)  
│ └────────────────────────── Escherichia coli B185   
│       ┌─ Escherichia coli (30-462/462) B171 (2)  
┤      ┌┴─ Escherichia coli (30-463/463) B7A (6)  
│      │    ┌───────── Escherichia coli MS 78-1   
│      │   ┌┴───────── Escherichia coli M718   
└──────┤  ┌┴───────── Escherichia coli O111:H- str. 11128   
       │ ┌┴┬─ Escherichia coli B171 (1)  
       │┌┤ └─ Escherichia coli B7A (15)  
       ││└───────── fig|1040638.4.peg.2845 O104:H4 str. LB226692 (2) [2] 
       └┤                 ┌─ Escherichia coli FVEC1302   
        │┌────────────────┴─ Escherichia coli FVEC1412 (2)  
        └┤        ┌─ Escherichia coli TA280   
         └────────┤       ┌─ Escherichia coli H299   
                  └───────┤                                  ┌─ Escherichia coli (30-463/463) K12 (8)  
                          └─────────────────────────┬────────┴─ Escherichia coli H736 (3)  
                                                    └────────┬───────── Escherichia coli (30-463/463) HS  [2] 
                                                             └┬─ Escherichia coli 53638 (1)  
                                                              └─ Escherichia coli 1827-70 (2)  
  

  
Beta-lactamase class C and other penicillin binding proteins
 (18)
  
hypothetical protein
 (5)
  
 Others 
(1)