┌─────────────────────────────────────────── Escherichia coli B185   
┤                                                           ┌── Escherichia coli 1044A (23)  
│                         ┌─────────────────────────────────┴── Escherichia coli O157:H7 EDL933 (1)  
└─────────────────────────┤     ┌─────────────────────────────────── Escherichia coli FVEC1302 (3)  
                          │   ┌─┴── Escherichia coli K12 (87)  
                          └─┬─┴────────────────────────────────── Escherichia coli 83972 (5)  
                            └─┬────────────────────────────────── Escherichia coli O111:H- str. 11128   
                              └─┬────────────────────────────────── Escherichia coli HS (1)  
                                └─┬────────────────────────────────── Escherichia coli E110019 (1)  
                                  └─────────────────────────────────── Escherichia coli MS 115-1   
  

  
Ribosomal RNA large subunit methyltransferase N (EC 2.1.1.-)
 (10)