Candidate GTs for enzymatic synthesis (3 of 4 possible linkages):

WfaP: E. coli O56 WfgD: E. coli O152 Orf8: E. coli O82 WcmW: E. coli O173

WfgE: E. coli O152 WcmX: E. coli O173 WfaO: E. coli O24

WaaR/WaaJ: E. coli K12