Flavone apiosyltransferase

Flavone apiosyltransferase
Identifiers
EC no.2.4.2.25
CAS no.37332-49-3
Databases
BRENDAenzyme data
ExPASyNiceZyme view
KEGGenzyme entry
MetaCycmetabolic pathway
Rheareactions
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
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PMCarticles
PubMedarticles
NCBIproteins

Flavone apiosyltransferase (EC 2.4.2.25) is an enzyme that catalyzes the chemical reaction

+ UDP-apiose
 
 
 
Rightward reaction arrow with minor product(s) to top right
 
 
 

The two substrates of this enzyme are the flavone, apigetrin, and UDP-apiose, which transfers its apiose sugar unit to one of the hydroxy groups in the glycosyl ring of the starting material to give apiin, with uridine diphosphate (UDP) as a byproduct.[1][2]

This enzyme belongs to the family of glycosyltransferases, specifically the pentosyltransferases. The systematic name of this enzyme class is UDP-apiose:5,4'-dihydroxyflavone 7-O-beta-D-glucoside 2''-O-beta-D-apiofuranosyltransferase. Other names in common use include uridine diphosphoapiose-flavone apiosyltransferase, and UDP-apiose:7-O-(beta-D-glucosyl)-flavone apiosyltransferase.[3]

References

  1. ↑ Ortmann R, Sutter A, Grisebach H (1972). "Purification and properties of udpapiose: 7-O-( -D-glucosyl)-flavone apiosyltransferase from cell suspension cultures of parsley". Biochim. Biophys. Acta. 289 (2): 293–302. doi:10.1016/0005-2744(72)90080-0. PMID 4650134.
  2. ↑ Hădărugă, Daniel-Ioan; Hădărugă, Nicoleta-Gabriela (2023). "Flavones: Structure, Properties, Sources and Food Applications". Handbook of Food Bioactive Ingredients. pp. 111–158. doi:10.1007/978-3-031-28109-9_4. ISBN 978-3-031-28108-2.
  3. ↑ Enzyme 2.4.2.25 at KEGG Pathway Database.