In enzymology, a beta-apiosyl-beta-glucosidase (EC 3.2.1.161) is an enzyme that catalyzes the chemical reaction

7-[beta-D-apiofuranosyl-(1->6)-beta-D-glucopyranosyloxy]isoflavonoid + H₂O ${\displaystyle \rightleftharpoons }$ a 7-hydroxyisoflavonoid + beta-D-apiofuranosyl-(1->6)-D-glucose

The 3 substrates of this enzyme are [[7-[beta-D-apiofuranosyl-(1->6)-beta-D-]], [[glucopyranosyloxy]isoflavonoid]], and H₂O, whereas its two products are 7-hydroxyisoflavonoid and [[beta-D-apiofuranosyl-(1->6)-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 7-[beta-D-apiofuranosyl-(1->6)-beta-D-glucopyranosyloxy]isoflavonoid beta-D-apiofuranosyl-(1->6)-D-glucohydrolase. Other names in common use include isoflavonoid-7-O-beta[D-apiosyl-(1->6)-beta-D-glucoside], disaccharidase, isoflavonoid 7-O-beta-apiosyl-glucoside beta-glucosidase, and furcatin hydrolase.

References

• Hosel W, Barz W (1975). "Beta-Glucosidases from Cicer arietinum L. Purification and Properties of isoflavone-7-O-glucoside-specific beta-glucosidases". Eur. J. Biochem. 57 (2): 607–16. doi: 10.1111/j.1432-1033.1975.tb02336.x . PMID   240725.
• Cairns JR; Hua, Y; Svasti, J; Sakdarat, S; Sullivan, PA; Ketudat Cairns, JR (2005). "Purification of an isoflavonoid 7-O-beta-apiosyl-glucoside beta-glycosidase and its substrates from Dalbergia nigrescens Kurz". Phytochemistry . 66 (16): 1880–9. Bibcode:2005PChem..66.1880C. doi:10.1016/j.phytochem.2005.06.024. PMID   16098548.
• Ahn YO, Mizutani M, Saino H, Sakata K (2004). "Furcatin hydrolase from Viburnum furcatum Blume is a novel disaccharide-specific acuminosidase in glycosyl hydrolase family 1". J. Biol. Chem. 279 (22): 23405–14. doi: 10.1074/jbc.M311379200 . PMID   14976214.