Candidate GTs for enzymatic synthesis (2 of 4 possible linkages):

WzY: E. coli O55 WclU: E. coli O3 WekU: E. coli O18ac WbgO: E. coli O55 WzyK24: A. baumannii RCH51

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