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Metabolic Modeling Tutorial
discounted EARLY registration ends Dec 31, 2014
BioCyc websites down
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for maintenance.
Metabolic Modeling Tutorial
discounted EARLY registration ends Dec 31, 2014
BioCyc websites down
12/28 - 12/31
for maintenance.
Metabolic Modeling Tutorial
discounted EARLY registration ends Dec 31, 2014
BioCyc websites down
12/28 - 12/31
for maintenance.
Metabolic Modeling Tutorial
discounted EARLY registration ends Dec 31, 2014
BioCyc websites down
12/28 - 12/31
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MetaCyc Enzyme: UDP-glucuronic acid: cyclo-DOPA 5-glucoside glucuronosyltransferase

Species: Celosia cristata

Summary:
The enzyme activity of UDP-glucuronic acid: cyclo-DOPA 5-glucoside glucuronosyltransferase has been detected in crude extracts from purple petals of feather cockscombs (Celosia cristata). The enzyme added glucuronic acid to 5-O-glucosylated cyclo-Dopa forming the corresponding glucuronosyl derivative. It has been demonstrated that the glucuronosyltransferase did not accept betanidin glucoside indicating that the glucuronic acid moity of amaranthin is introduced at the cyclo-Dopa glucoside step, i.e. before the condensation with betalamic acid takes place [Sasaki05a].

Gene-Reaction Schematic: ?

Credits:
Created 03-Jan-2007 by Foerster H , TAIR


Enzymatic reaction of: UDP-glucuronic acid: cyclo-DOPA 5-glucoside glucuronosyltransferase

EC Number: 2.4.1.-

cyclo-dopa 5-O-glucoside + UDP-α-D-glucuronate <=> cyclo-dopa glucuronylglucoside + UDP + H+

The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the direction in which it was curated.

The reaction is favored in the direction shown.

In Pathways: superpathway of betalain biosynthesis , amaranthin biosynthesis

Citations: [Sasaki05a]


References

Sasaki05a: Sasaki N, Abe Y, Wada K, Koda T, Goda Y, Adachi T, Ozeki Y (2005). "Amaranthin in feather cockscombs is synthesized via glucuronylation at the cyclo-DOPA glucoside step in the betacyanin biosynthetic pathway." J Plant Res 118(6);439-42. PMID: 16247652


Report Errors or Provide Feedback
Please cite the following article in publications resulting from the use of MetaCyc: Caspi et al, Nucleic Acids Research 42:D459-D471 2014
Page generated by SRI International Pathway Tools version 18.5 on Sat Dec 20, 2014, biocyc14.