Hydroxyanthraquinone glucosyltransferase

Hydroxyanthraquinone glucosyltransferase
Identifiers
EC no.2.4.1.181
CAS no.112198-78-4
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

Hydroxyanthraquinone glucosyltransferase (EC 2.4.1.181) is an enzyme that catalyzes the general chemical reaction

UDP-glucose + a hydroxyanthraquinone UDP + a glucosyloxyanthraquinone

The two substrates of this enzyme characterised from Cinchona succiruba are a hydroxyanthraquinone and UDP-glucose. Its products are the corresponding glucosylated anthraquinone and uridine diphosphate (UDP). For example, emodin, an active component of several plants used in traditional Chinese medicine,[1] is converted to emodin-8-glucoside:[2]

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is UDP-glucose:hydroxyanthraquinone O-glucosyltransferase. Other names in common use include uridine diphosphoglucose-anthraquinone glucosyltransferase, and anthraquinone-specific glucosyltransferase.[3]

References

  1. ↑ Tsay HS, Shyur LF, Agrawal DC, Wu YC, Wang SY (3 November 2017). Medicinal Plants – Recent Advances in Research and Development. Singapore: Springer Singapore. p. 339. ISBN 978-981-10-5978-0.
  2. ↑ Khouri HE, Ibrahim RK (1987). "Purification and some properties of five anthraquinone-specific glucosyltransferases from Cinchona succiruba cell suspension culture". Phytochemistry. 26 (9): 2531–2535. Bibcode:1987PChem..26.2531K. doi:10.1016/S0031-9422(00)83870-4.
  3. ↑ Enzyme 2.4.1.181 at KEGG Pathway Database.