Entry
Name
beta-D-glucopyranosyl abscisate beta-glucosidase;
AtBG1;
ABA-beta-D-glucosidase;
ABA-specific beta-glucosidase;
ABA-GE hydrolase;
beta-D-glucopyranosyl abscisate hydrolase
Class
Hydrolases;
Glycosylases;
Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
BRITE hierarchy
Sysname
beta-D-glucopyranosyl abscisate glucohydrolase
Reaction(IUBMB)
D-glucopyranosyl abscisate + H2O = D-glucose + abscisate [RN:
R09723 ]
Reaction(KEGG)
Substrate
D-glucopyranosyl abscisate;
H2O [CPD:
C00001 ]
Product
Comment
The enzyme hydrolzes the biologically inactive beta-D-glucopyranosyl ester of abscisic acid to produce active abscisate. Abscisate is a phytohormone critical for plant growth, development and adaption to various stress conditions. The enzyme does not hydrolyse beta-D-glucopyranosyl zeatin [1].
History
EC 3.2.1.175 created 2011
Pathway
ec01110 Biosynthesis of secondary metabolites
Orthology
K15748 beta-D-glucopyranosyl abscisate beta-glucosidase
Genes
EUS : EUTSA_v10011384mg EUTSA_v10011385mg
Taxonomy
Reference
Authors
Lee KH, Piao HL, Kim HY, Choi SM, Jiang F, Hartung W, Hwang I, Kwak JM, Lee IJ, Hwang I
Title
Activation of glucosidase via stress-induced polymerization rapidly increases active pools of abscisic acid.
Journal
Sequence
Reference
Authors
Kato-Noguchi H, Tanaka Y
Title
Effect of ABA-beta-D-glucopyranosyl ester and activity of ABA-beta-D-glucosidase in Arabidopsis thaliana.
Journal
Sequence
Reference
Authors
Dietz KJ, Sauter A, Wichert K, Messdaghi D, Hartung W
Title
Extracellular beta-glucosidase activity in barley involved in the hydrolysis of ABA glucose conjugate in leaves.
Journal
Other DBs
ExPASy - ENZYME nomenclature database: 3.2.1.175