Candidate GTs for enzymatic synthesis (3 of 8 possible linkages):
WbwA:
E. coli
O104
NeuS:
E. coli
K1,
E. coli
K92
WfeD:
E. coli
O32
Orf6:
E. coli
O83
Orf9:
E. coli
O136
WbsG:
E. coli
O91