Candidate GTs for enzymatic synthesis (4 of 8 possible linkages):
gnt1p: S. cerevisiae SEY6210
WbbL: E. coli K12 O16
Orf12: E. coli O39
WekH: E. coli O119
WfaL: E. coli O139
Orf6: E. coli O48
WekY: E. coli O75
WekI: E. coli O119
WekK: E. coli O119