┌─ Escherichia coli 2362-75 (20)  
┬────────────────────────────────────────┴────────────────────── Escherichia coli 83972 (1)  
└───────────────────────┬─ fig|1040638.4.peg.1819 O104:H4 str. LB226692 (22)  
                        └┬───────────────────── Escherichia coli MS 182-1   
                         └─────────────────────┬────────────────────── Escherichia coli ATCC 8739 (1)  
                                               └┬─ Escherichia coli O157:H7 EDL933 (1)  
                                                └─ Escherichia coli K12 (79)  
  

  
Outer membrane stress sensor protease DegS
 (6)
  
 Others 
(1)