┬──────────────────────────────────────────────────────────────────── Escherichia coli (12-151/164) K12 (124)  
└──────────────────────────────────────────────────────────────────┬─ Escherichia coli SMS-3-5   
                                                                   └┬─ Escherichia coli O127:H6 str. E2348/69   
                                                                    └┬─ Escherichia coli K12 (129)  
                                                                     └─ Escherichia coli OP50   
  

  
Regulatory protein AsnC
 (4)
  
Leucine-responsive regulatory protein, regulator for leucine (or lrp) regulon and high-affinity branched-chain amino acid transport system
 (1)