Candidate GTs for enzymatic synthesis (1 of 2 possible linkages):
kre5p: S. cerevisiae SEY6210, TA405, HAB927, HAB928, HAB929, HAB930, HAB931, HAB932, HAB933, HAB934, HAB935, HAB936, HAB937
bgl2p: S. cerevisiae SEY 2101
BGLU6: A. thaliana
CaUGT3: C. roseus