Amygdalin beta-glucosidase

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amygdalin beta-glucosidase
EC number3.2.1.117
CAS number51683-43-3
IntEnzIntEnz view
ExPASyNiceZyme view
MetaCycmetabolic pathway
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO

In enzymology, an amygdalin beta-glucosidase (EC is an enzyme that catalyzes the chemical reaction

(R)-amygdalin + H2O (R)-prunasin + D-glucose

Thus, the two substrates of this enzyme are (R)-amygdalin and H2O, whereas its two products are (R)-prunasin and D-glucose.

This enzyme belongs to the family of hydrolases, specifically those glycosidases that hydrolyse O- and S-glycosyl compounds. The systematic name of this enzyme class is amygdalin beta-D-glucohydrolase. Other names in common use include amygdalase, amygdalinase, amygdalin hydrolase, and amygdalin glucosidase.

It can be completely inhibited by the action of Glucono delta-lactone at 1 mM concentration.[1]


  1. ^ Petruccioli, M.; Brimer, L.; Cicalini, A. R.; et al. (1999). "Production and Properties of the Linamarase and Amygdalase Activities of Penicillium aurantiogriseum P35". Bioscience, Biotechnology, and Biochemistry. 63 (5): 805–812. doi:10.1271/bbb.63.805. PMID 10380623.
  • Kuroki G, Lizotte PA, Poulton JE (1984). "Catabolism of (R)-Amygdalin and (R)-Vicianin by Partially Purified β-Glycosidases from Prunus serotina Ehrh. and Davallia trichomanoides". Z. Naturforsch. C. 39: 232–239.