┌─ Escherichia coli 83972 (8)  
┌────────────────────────────┴─ Escherichia coli (20-205/205) CFT073   
┤ ┌─ Escherichia coli (20-205/205) B171   
│┌┴─ Escherichia coli (20-205/205) 53638 (6)  
└┤┌─ Escherichia coli (1-171/172) MS 107-1   
 └┤┌─ Escherichia coli B171   
  ││                               ┌─ Escherichia coli FVEC1302 (4)  
  └┤ ┌─────────────────────────────┴────────────────────────────── Escherichia coli TA143   
   │┌┴────────────────────────────── Escherichia coli IAI39 (1)  
   └┤ ┌─ fig|1040638.4.peg.1862 O104:H4 str. LB226692 (44)  
    │┌┴────────────────────────────────────────────────────────────── Escherichia coli (20-205/205) 042  [2] 
    └┤                               ┌─ Escherichia coli 2362-75 (1)  
     │┌──────────────────────────────┴─ Escherichia coli (20-205/205) E2348/69 (1)  
     └┤┌────────────────────────────── Escherichia coli MS 182-1 (1)  
      └┤                              ┌─ Escherichia coli 1044A (24)  
       └─────────────────────────────┬┴────────────────────────────── Escherichia coli M718   
                                     └┬─ Escherichia coli (20-205/205) O157:H7 str. EC4486   
                                      └─────────────────────────────┬─ Escherichia coli (20-205/205) ATCC 8739 (2)  
                                                                    └─ Escherichia coli K12 (21)  
  

  
YrdC/Sua5 family protein, required for threonylcarbamoyladenosine (t(6)A) formation in tRNA
 (11)
  
Sua5 YciO YrdC YwlC family protein
 (6)
  
COG0009 YrdC subfamily, required for N6-threonylcarbamoyl adenosine t(6)A37 modification in tRNA
 (1)
  
 Others 
(1)