Candidate GTs for enzymatic synthesis (3 of 5 possible linkages):

WbnI / WbwI: E. coli O86:K62:H2, E. coli O86 WclF: E. coli O155

WaaX: E. coli R4 F2513

WfeD: E. coli O32 Orf6: E. coli O83 Orf9: E. coli O136 WbsG: E. coli O91