┌─ Escherichia coli (753-1001/1018) B354 (1)  
                                                                    ┌┴─ Escherichia coli (842-1090/1107) M605 (1)  
                                                                   ┌┴─ Escherichia coli (842-1090/1107) K12 (125)  
┬──────────────────────────────────────────────────────────────────┴─ Escherichia coli (842-1090/1107) E22 (2)  
└──────────────────────────────────────────────────────────────────┬─ Escherichia coli (854-1120/1120) ED1a (1)  
                                                                   └┬─ Escherichia coli (854-1120/1120) 83972 (5)  
                                                                    └┬─ Escherichia coli (854-1120/1120) K12 (120)  
                                                                     └─ Escherichia coli (852-1118/1118) KO11 (2)  
  

  
Potassium efflux system KefA protein / Small-conductance mechanosensitive channel
 (7)
  
Potassium efflux system YjeP / Small-conductance mechanosensitive channel
 (1)