What is "quercitrinase"

In enzymology, a quercitrinase is an enzyme that catalyzes the chemical reaction

quercitrin + HO $\rightleftharpoons$ L-rhamnose + quercetin

Thus, the two substrates of this enzyme are quercitrin and HO, whereas its two products are L- rhamnose and quercetin.

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 quercitrin 3-L-rhamnohydrolase.

The enzyme can be found in Aspergillus flavus. It is an enzyme in the rutin catabolic pathway.