Candidate GTs for enzymatic synthesis (5 of 8 possible linkages):
| WfeL: E. coli O112ac WfeG: E. coli O112ab |
| WfeM: E. coli O112ac WfeF: E. coli O112ab Orf9: E. coli O142 WzyK8: A. baumannii BAL 097 WzyK89: A. baumannii LUH5552 |
| WfeI: E. coli O112ab |
| WfeH: E. coli O112ab |
| Orf1: E. coli O76 |