ENZYME

A new class EC 7, Translocases, has been added to the EC list. It will be part of ENZYME from release 2018_10. Read more about EC 7 here.

ENZYME entry: EC 3.2.1.149

Accepted Name
Beta-primeverosidase.
Reaction catalysed
A 6-O-(beta-D-xylopyranosyl)-beta-D-glucopyranoside + H(2)O <=> 6-O-(beta-D-xylopyranosyl)-beta-D-glucopyranose + an alcohol
Comment(s)
The enzyme is responsible for the formation of the alcoholic aroma in oolong and black tea. In addition to beta-primeverosides (i.e. 6-O-(beta-D-xylopyranosyl)- beta-D-glucopyranosides), it also hydrolyzes 6-O-(beta-D- apiofuranosyl)-beta-D-glucopyranosides and, less rapidly, beta- vicianosides and 6-O-(alpha-L-arabinofuranosyl)-beta-D- glucopyranosides, but not beta-glucosides. Geranyl-, linaloyl-, benzyl- and p-nitrophenol glycosides are all hydrolyzed.
Cross-references
BRENDA	3.2.1.149
EC2PDB	3.2.1.149
ExplorEnz	3.2.1.149
PRIAM enzyme-specific profiles	3.2.1.149
KEGG Ligand Database for Enzyme Nomenclature	3.2.1.149
IUBMB Enzyme Nomenclature	3.2.1.149
IntEnz	3.2.1.149
MEDLINE	Find literature relating to 3.2.1.149
MetaCyc	3.2.1.149

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