┌────── Escherichia coli (38-181/352) ED1a (12)  
                                                  ┌─────┴─ Escherichia coli (1-144/315) H299 (1)  
            ┌─────────────────────────────────────┴─ Escherichia coli (38-181/352) 2362-75 (7)  
           ┌┴─────── Escherichia coli (38-172/352) TA280   
          ┌┴─ Escherichia coli (1-135/315) CFT073 (15)  
         ┌┴─────── Escherichia coli (38-172/352) MS 21-1   
┌────────┴─ Escherichia coli (1-130/310) FVEC1302   
│                                   ┌─ Escherichia coli (8-133/313) OP50   
┤                                  ┌┴─ Escherichia coli (1-130/310) K12 (1)  
│                                 ┌┴─ Escherichia coli (40-172/352) BW2952 (10)  
└──────────────────────────┬──────┴─ Escherichia coli (1-135/315) B7A (19)  
                           └┬─ Escherichia coli (1-130/310) B171 (3)  
                            └┬─ fig|6666666.5357.peg.2976 TY-2482 (1-135/315) strain (23)  
                             └┬─ fig|1040638.4.peg.3948 O104:H4 str. LB226692   
                              └────────────┬─────────────────────────── Escherichia coli (38-173/216) O157:H7 str. EC4042   
                                           └┬─ Escherichia coli (1-130/310) 1212A (4)  
                                            └─ Escherichia coli (14-148/328) O157:H7 EDL933 (19)  
  
Zinc ABC transporter, periplasmic-binding protein ZnuA (15)
Others (2)