┌──────────────────────────────────── Escherichia coli B171 (1)  
┤                                ┌────────────────────────────────── Escherichia coli MS 187-1   
└───────────────────────────────┬┴────────────────────────────────── Escherichia coli 83972 (3)  
                                └┬─ Escherichia coli K12 (117)  
                                 └┬─ Escherichia coli OP50   
                                  └┬────────────────────────────────── Escherichia coli M605   
                                   └────────────────────────────────── Escherichia coli IAI39 (1)  
  

  
Integral membrane protein YggT, involved in response to extracytoplasmic stress (osmotic shock)
 (7)