Candidate GTs for enzymatic synthesis (4 of 5 possible linkages):
gma12p:
S. pombe
W303-1A, SSY18
WbaZ:
E. coli
O9a:K30
WcaN:
E. coli
O9a:K30
WejW:
E. coli
O27
WcaO:
E. coli
O9a:K30
Orf8:
E. coli
O39