Candidate GTs for enzymatic synthesis (7 of 6 possible linkages):

ktr4p: S. cerevisiae S288c

gnt1p: S. cerevisiae SEY6210

gnt1p: S. cerevisiae SEY6210

WbdA / MtfA: E. coli O9a CWG634, E. coli O9 F719

WbaX: E. coli O183

WdaF: E. coli O11 Orf6: E. coli O43 Orf9: E. coli O184

WfeV: E. coli O168