┌───────────── Escherichia coli (29-67/67) B7A (11)  
┤       ┌─ Escherichia coli (278-316/316) K12 (157)  
└──────┬┴──────────────────── Escherichia coli (278-316/316) MS 116-1 (1)  
       └───────────────────┬─ Escherichia coli (29-67/67) 101-1 (6)  
                           └────────────────────┬──────────────────── Escherichia coli (29-67/67) B171 (7)  
                                                └─ Escherichia coli (278-316/316) MS 182-1 (10)  
  

  
Magnesium and cobalt transport protein CorA
 (6)