Candidate GTs for enzymatic synthesis (4 of 11 possible linkages):
| WbwA: E. coli O104 |
| WcnV: E. coli O165 Orf7: E. coli O82 WclP: E. coli O21 |
| WfeD: E. coli O32 Orf6: E. coli O83 Orf9: E. coli O136 WbsG: E. coli O91 |
| Gtr58: A. baumannii 1432, 4190, NIPH 70 Gtr153: A. baumannii LUH5534 |