Candidate GTs for enzymatic synthesis (3 of 4 possible linkages):
| WzY: E. coli O55 WclU: E. coli O3 WekU: E. coli O18ac WbgO: E. coli O55 WzyK24: A. baumannii RCH51 |
| WbeX: E. coli O28ac, E. coli O42 |
| WfeD: E. coli O32 Orf6: E. coli O83 Orf9: E. coli O136 WbsG: E. coli O91 |