Candidate GTs for enzymatic synthesis (3 of 8 possible linkages):
WffZ: E. coli O29
Gtr30K12: A. baumannii D36
Gtr199: A. baumannii MAR13-1452
Gtr19K54: A. baumannii RCH52
Gtr19K8: A. baumannii BAL 097
Gtr116: A. baumannii BAL_212