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

KfoC: E. coli K4 Orf7: E. coli O185 Gtr69: A. baumannii LUH5549

KfoE: E. coli O5:K4:H4 (ATCC 23502)

WbhR: E. coli O22 Orf5: E. coli O76