Candidate GTs for enzymatic synthesis (3 of 7 possible linkages):
ktr4p: S. cerevisiae S288c
gnt1p: S. cerevisiae SEY6210
WbaD: E. coli O77:K96, E. coli O77, E. coli O17, E. coli O44, E. coli O73
Orf7: E. coli O6a
WclC: E. coli O59
WfaV: E. coli O68
WfaA: E. coli O66