The products from reaction of GlcF and Fuc-pNP included Fuc-β-(1→3)-Fuc-pNP, Glc-β-(1→3)-Fuc-pNP, and Fuc-β-(1→4)-Glc-β-(1→3)-Fuc-pNP, suggesting the presence of both wild type BGlu1 and its glycosynthase.