Candidate GTs for enzymatic synthesis (15 of 16 possible linkages):
| ktr4p: S. cerevisiae S288c |
| gnt1p: S. cerevisiae SEY6210 |
| RHS8: A. thaliana |
| WaaR/WaaJ: E. coli K12 |
| WejQ: E. coli O78 |
| Orf5: E. coli O6a |
| Orf3: E. coli O6a |
| WfbF: E. coli O167 |
| WffQ: E. coli O40 |
| Orf11: E. coli O65 |
| Orf10: E. coli O74 |
| Orf5: E. coli L19 |
| WfbY: E. coli O147 |
| WftD: E. coli O103 Gtr121: A. baumannii LUH5552 |
| Orf4: E. coli O43 |