┌───────────────────────────────────────────────────────── Escherichia coli IAI39 (1)  
┬──┴─────────────────────────────────────────── Escherichia coli B171 (6)  
└───────────────────────────────────────┬──────────────────────────── fig|1040638.4.peg.1052 O104:H4 str. LB226692 (4)  
                                        └┬────────────── Escherichia coli E24377A (1)  
                                         └┬────────────── Escherichia coli O111:H- str. 11128   
                                          └─ Escherichia coli B7A (17)  
  

  
COG0330: Membrane protease subunits, stomatin/prohibitin homologs
 (5)
  
 Others 
(1)