Candidate GTs for enzymatic synthesis (7 of 6 possible linkages):
| WclY / WbeC: E. coli O117 |
| WfeT: E. coli O124 |
| WfeS: E. coli O124 |
| Orf6: E. coli O131 Orf7: E. coli O171 |
| WzyK52: A. baumannii LUH5546 WzyK2: A. baumannii ACICU, A74 WzyK93: A. baumannii B11911 |
| WzyK27: A. baumannii 1432, 4190 |
| WzyK82: A. baumannii LUH5534 |