Candidate GTs for enzymatic synthesis (2 of 8 possible linkages):

WfaP: E. coli O56 G1068 WfgD: E. coli O152 G1104 WcnW: E. coli O165

Orf4: E. coli O82 WfgC: E. coli O152 WcmV: E. coli O173