PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1829637-2 1991 As reported earlier with the sweet potato enzyme, maltal hydration in D2O by soybean beta-amylase was found to exhibit an unusually large solvent deuterium kinetic isotope effect (VH/VD = 6.5), a reaction rate linearly dependent on the mole fraction of deuterium, and 2-deoxy-[2(a)-2H]maltose as product. Deuterium Oxide 70-73 beta-amylase Glycine max 85-97