Candidate GTs for enzymatic synthesis (7 of 8 possible linkages):
| 81A1: A. thaliana |
| GALS1: A. thaliana WclN: E. coli O21 WfeB: E. coli O32 Orf4: E. coli O83 |
| GALT1: A. thaliana WbgO: E. coli O55:H7 WbgP: E. coli O55 Orf2: E. coli O64 |
| WclY / WbeC: E. coli O117 |
| WclY / WbeC: E. coli O117 |
| WbgO: E. coli O55:H7 |
| WbwA: E. coli O104 |