Candidate GTs for enzymatic synthesis (6 of 12 possible linkages):
ktr4p: S. cerevisiae S288c
RfaC: E. coli K12
WffD: E. coli O58
WejN: E. coli O78
WbqH: E. coli O121
Gtr71: A. baumannii LUH5535
Gtr39: A. baumannii G7
WbqE: E. coli O121
Gtr12KL98: A. baumannii REV-1184