In
enzymology
Enzymes () are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products. A ...
, an isovitexin beta-glucosyltransferase () is an
enzyme
Enzymes () are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products. A ...
that
catalyzes
Catalysis () is the process of increasing the rate of a chemical reaction by adding a substance known as a catalyst (). Catalysts are not consumed in the reaction and remain unchanged after it. If the reaction is rapid and the catalyst recyc ...
the
chemical reaction
A chemical reaction is a process that leads to the IUPAC nomenclature for organic transformations, chemical transformation of one set of chemical substances to another. Classically, chemical reactions encompass changes that only involve the pos ...
:UDP-glucose + isovitexin
UDP + isovitexin 2"-O-beta-D-glucoside
Thus, the two
substrates of this enzyme are
UDP-glucose and
isovitexin
Isovitexin (or homovitexin, saponaretin) is a flavone. the apigenin-6-''C''-glucoside. In this case, the prefix 'iso' does not imply an isoflavonoid (the position of the B-ring on the C-ring), but the position of the glucoside on the flavone.
Na ...
, whereas its two
products are
UDP and
isovitexin 2"-O-beta-D-glucoside.
This enzyme belongs to the family of
glycosyltransferases, specifically the hexosyltransferases. The
systematic name of this enzyme class is UDP-glucose:isovitexin 2"-O-beta-D-glucosyltransferase. This enzyme is also called uridine diphosphoglucose-isovitexin 2"-glucosyltransferase.
References
*
EC 2.4.1
Enzymes of unknown structure
{{2.4-enzyme-stub