┌────────────────────────────────────────────────────────── Escherichia coli (102-303/337) TA280   
│                                                    ┌─ Escherichia coli (41-248/270) M718   
│                                                   ┌┴─── Escherichia coli (41-247/269) O157:H7 str. EC869   
│                                                  ┌┴─ Escherichia coli (41-248/270) K12 (114)  
┤                                                 ┌┴┬─ Escherichia coli (41-248/270) MS 187-1   
│                                                ┌┤ └─ Escherichia coli (41-248/270) O157:H7 EDL933 (1)  
│                                               ┌┤└─ Escherichia coli (41-239/239) O157:H7 str. EC4076   
│             ┌─────────────────────────────────┤└─ Escherichia coli (41-249/271) O157:H7 str. EC4206   
│             │                                 └─ Escherichia coli (41-248/270) TA143   
└─────────────┤                                                     ┌─ Escherichia coli (18-223/223) ATCC 8739 (14)  
              │                                                    ┌┴─ Escherichia coli MS 116-1 (1)  
              └────────────────────────────────────────────────────┤  ┌─ Escherichia coli (54-259/259) CFT073 (8)  
                                                                   │ ┌┴─ Escherichia coli MS 21-1   
                                                                   └┬┴─ Escherichia coli E22 (1)  
                                                                    └┬─ Escherichia coli (54-259/259) O157:H7 EDL933 (1)  
                                                                     └┬─ Escherichia coli MS 107-1   
                                                                      └─ Escherichia coli K12 (97)  
  
FKBP-type peptidyl-prolyl cis-trans isomerase FkpA precursor (EC 5.2.1.8) (9)
FKBP-type peptidyl-prolyl cis-trans isomerase fklB (EC 5.2.1.8) (8)