Candidate GTs for enzymatic synthesis (5 of 3 possible linkages):
| AtFUT13: A. thaliana |
| AtFUT13: A. thaliana |
| RGXT1: A. thaliana RGXT2: A. thaliana RGXT3: A. thaliana |
| RGXT1: A. thaliana RGXT2: A. thaliana RGXT3: A. thaliana |
| Orf5: E. coli O41 WfgP: E. coli O159 |