┌─ Escherichia coli (1-212/213) 536 (24)  
                                             ┌┴───────── Escherichia coli (1-212/213) 2362-75 (1)  
       ┌─────────────────────────────────────┴───────── Escherichia coli (1-212/213) NC101   
┌──────┴─ Escherichia coli (1-212/213) IAI39 (3)  
┤           ┌─ Escherichia coli (1-212/213) FVEC1302 (6)  
└───────────┤        ┌─ Escherichia coli (1-212/213) B354   
            │        │                 ┌─ Escherichia coli K12 (19)  
            └────────┤        ┌────────┴───────── Escherichia coli ETEC H10407   
                     │        │                  ┌─ Escherichia coli (7-219/219) E110019 (10)  
                     └────────┤┌─────────────────┴─────────────────── Escherichia coli (7-219/219) B171 (1)  
                              ││  ┌───────── Escherichia coli O55:H7 str. CB9615   
                              └┤ ┌┴─────────────────── Escherichia coli M718   
                               │┌┴───────── Escherichia coli O157:H7 str. EC869 (2)  
                               └┤  ┌─ Escherichia coli 1044A (13)  
                                │ ┌┴───────── Escherichia coli O157:H7 str. EC4024 (10)  
                                └┬┴─ Escherichia coli (1-199/200) TA280   
                                 └┬───────── Escherichia coli (7-219/219) 042 (1)  
                                  └────────┬───────── Escherichia coli 1125A (1)  
                                           └┬───────── Escherichia coli O111:H- str. 11128   
                                            └┬─ Escherichia coli E24377A (6)  
                                             └────────┬───────── Escherichia coli KO11 (2)  
                                                      └─ fig|1040638.4.peg.3836 O104:H4 str. LB226692 (8)  
  

  
Nicotinamidase (EC 3.5.1.19)
 (21)
  
 Others 
(1)