Candidate GTs for enzymatic synthesis (5 of 6 possible linkages):
ktr4p: S. cerevisiae S288c
gnt1p: S. cerevisiae SEY6210
WffD: E. coli O58
WejN: E. coli O78
WdaF: E. coli O11
Orf6: E. coli O43
Orf9: E. coli O184
WfeV: E. coli O168