Candidate GTs for enzymatic synthesis (4 of 9 possible linkages):

csh1p: S. cerevisiae SEY6210, KA31-1A, SUY41, EHY227, KHY195, SUY45, SUY49, SUY53 sur1p: S. cerevisiae DBY689, CuH3

WbnI / WbwI: E. coli O86:K62:H2, E. coli O86 WclF: E. coli O155

WbgL: E. coli O126 WbsJ: E. coli O128:B12

Orf7: E. coli O156