┌─ Escherichia coli (12-153/155) ATCC 8739 (2)  
┬──────────────────────────────────────────────────────┴───────────── Escherichia coli (1-142/144) 55989 (3)  
└──────────────────────────────────────────────────────┬─── Escherichia coli (40-182/182) ATCC 8739 (2)  
                                                       └──────── Escherichia coli (40-182/182) APEC O1 (7)  
  
probable copper-binding protein (2)
Silver-binding protein (1)
Silver-binding protein silE precursor (1)