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Information on EC 3.2.1.149 - beta-primeverosidase

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IUBMB Comments
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 hydrolyses 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 hydrolysed.
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Word Map
The enzyme appears in viruses and cellular organisms
Synonyms
4-methylumbelliferyl-beta-D-glucopyranoside:beta-glucosidase, arbutinase, ary beta-glucosidase, beta-D-glucosidase, beta-D-glucoside glucohydrolase, beta-glucosidase, beta-glucoside hydrolase, beta-primeverosidase, diglycoside-specific beta-primeverosidase, p-nitrophenyl beta-glucosidase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
a 6-O-(beta-D-xylopyranosyl)-beta-D-glucopyranoside + H2O = 6-O-(beta-D-xylopyranosyl)-beta-D-glucopyranose + an alcohol
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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 hydrolyses 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 hydrolysed
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PATHWAY SOURCE
PATHWAYS
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