Hydrolases;
Glycosylases;
Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
BRITE hierarchy

7-[beta-D-apiofuranosyl-(1->6)-beta-D-glucopyranosyloxy]isoflavonoid beta-D-apiofuranosyl-(1->6)-D-glucohydrolase

7-[beta-D-apiofuranosyl-(1->6)-beta-D-glucopyranosyloxy]isoflavonoid + H2O = a 7-hydroxyisoflavonoid + beta-D-apiofuranosyl-(1->6)-D-glucose

7-[beta-D-apiofuranosyl-(1->6)-beta-D-glucopyranosyloxy]isoflavonoid;
H2O [CPD:C00001]

The enzyme from the tropical tree Dalbergia nigrescens Kurz belongs in glycosyl hydrolase family 1. The enzyme removes disaccharides from the natural substrates dalpatein 7-O-beta-D-apiofuranosyl-(1->6)-beta-D-glucopyranoside and 7-hydroxy-2',4',5',6-tetramethoxy-7-O-beta-D-apiofuranosyl-(1->6)-beta-D-glucopyranoside (dalnigrein 7-O-beta-D-apiofuranosyl-(1->6)-beta-D-glucopyranoside) although it can also remove a single glucose residue from isoflavonoid 7-O-glucosides [2]. Daidzin and genistin are also substrates.

EC 3.2.1.161 created 2006

1  [PMID:240725]

Hosel W, Barz W.

Beta-Glucosidases from Cicer arietinum L. Purification and Properties of isoflavone-7-O-glucoside-specific beta-glucosidases.

Eur J Biochem 57:607-16 (1975)
DOI:10.1111/j.1432-1033.1975.tb02336.x

2  [PMID:16098548]

Chuankhayan P, Hua Y, Svasti J, Sakdarat S, Sullivan PA, Ketudat Cairns JR.

Purification of an isoflavonoid 7-O-beta-apiosyl-glucoside beta-glycosidase and its substrates from Dalbergia nigrescens Kurz.

Phytochemistry 66:1880-9 (2005)
DOI:10.1016/j.phytochem.2005.06.024

3  [PMID:14976214]

Ahn YO, Mizutani M, Saino H, Sakata K

Furcatin hydrolase from Viburnum furcatum Blume is a novel disaccharide-specific acuminosidase in glycosyl hydrolase family 1.

J Biol Chem 279:23405-14 (2004)
DOI:10.1074/jbc.M311379200

[ag:BAD14925]