Candidate GTs for enzymatic synthesis (7 of 14 possible linkages):
| RfaC: E. coli K12, E. coli K12 MB1760 |
| RfaF: E. coli K12 |
| WaaA: E. coli K12 |
| WaaG: E. coli R1 F470, E. coli R4 F2513 |
| WaaZ: E. coli K12 |
| WbwA: E. coli O104 |
| WfeD: E. coli O32 Orf6: E. coli O83 Orf9: E. coli O136 WbsG: E. coli O91 |