┌─ Escherichia coli (8-98/98) K12 (117)  
┬──────────────────────────────────────────────────────────────────┴─ Escherichia coli MS 21-1   
└──────────────────────────────────────────────────────────────────┬─ Escherichia coli ETEC H10407   
                                                                   └┬─ Escherichia coli 1827-70   
                                                                    └┬─ Escherichia coli H591 (4)  
                                                                     └─ Escherichia coli K12 (121)  
  
Uncharacterized protein YohL (4)
Uncharacterized protein YaiN in in formaldehyde detoxification operon (2)