Candidate GTs for enzymatic synthesis (3 of 10 possible linkages):

WzY: E. coli O137 LpxB: E. coli

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

WbeS: E. coli O28ac, E. coli O42 Orf6: E. coli O28ab