┌─ Escherichia coli (37-285/285) IAI39 (1)  
┌────────────────────┴────────────────────── Escherichia coli (37-285/285) MS 21-1   
│                         ┌────────────────────── Escherichia coli (37-285/285) TA143   
│                        ┌┴────────────────────── Escherichia coli (37-285/285) ATCC 8739 (1)  
┤                       ┌┴─ Escherichia coli K12 (88)  
│                      ┌┴─ Escherichia coli (37-269/269) B7A   
│┌─────────────────────┴────────────────────── Escherichia coli O111:H- str. 11128   
└┤┌─ Escherichia coli (37-285/285) 042 (3)  
 └┤                     ┌─ Escherichia coli (37-285/285) 83972 (8)  
  └─────────────────────┤                      ┌────────────────────── Escherichia coli (37-285/285) H299   
                        └┬─────────────────────┴─ Escherichia coli (37-285/285) 536 (15)  
                         └─────────────────────┬────────────────────── Escherichia coli (37-285/285) M605   
                                               └┬────────────────────── Escherichia coli (37-285/285) E2348/69 (1)  
                                                └─ Escherichia coli 2362-75   
  

  
Phosphatidate cytidylyltransferase (EC 2.7.7.41)
 (14)