Candidate GTs for enzymatic synthesis (3 of 4 possible linkages):
WaaX:
E. coli
R4 F2513
WcnV:
E. coli
O165
Orf7:
E. coli
O82
WclP:
E. coli
O21
WbaS:
E. coli
O169,
E. coli
O183