Isoflavone 7-O-glucosyltransferase

isoflavone 7-O-glucosyltransferase
Identifiers
EC no.2.4.1.170
CAS no.97089-62-8
Databases
BRENDAenzyme data
ExPASyNiceZyme view
KEGGenzyme entry
MetaCycmetabolic pathway
Rheareactions
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
Search
PMCarticles
PubMedarticles
NCBIproteins

Isoflavone 7-O-glucosyltransferase (EC 2.4.1.170) is an enzyme that catalyzes several related chemical reaction that convert a phenolic hydroxy group in isoflavones to their glycosyl derivative.[1]

UDP-glucose + an isoflavone UDP + an isoflavone 7-O-beta-D-glucoside

The substrates of this enzyme are an isoflavone and UDP-glucose. These produce the corresponding isoflavone 7-O-beta-D-glucoside and the by-product uridine diphosphate (UDP). For example, daidzein is converted to daidzin.[2]

 
 
Rightward reaction arrow with minor product(s) to top right
 
 
 

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is UDP-glucose:isoflavone 7-O-beta-D-glucosyltransferase. Other names in common use include uridine diphosphoglucose-isoflavone 7-O-glucosyltransferase, UDPglucose-favonoid 7-O-glucosyltransferase, and UDPglucose:isoflavone 7-O-glucosyltransferase. This enzyme participates in isoflavonoid biosynthesis.[1]

References

  1. 1 2 Enzyme 2.4.1.170 at KEGG Pathway Database.
  2. ↑ Koster J, Barz W (1981). "UDP-glucose:isoflavone 7-O-glucosyltransferase from roots of chick pea (Cicer arietinum L.)". Arch. Biochem. Biophys. 212 (1): 98–104. doi:10.1016/0003-9861(81)90347-7. PMID 6458246.