The Enzyme Database

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EC 2.4.1.295     
Accepted name: anthocyanin 3-O-sambubioside 5-O-glucosyltransferase
Reaction: UDP-α-D-glucose + an anthocyanidin 3-O-β-D-sambubioside = UDP + an anthocyanidin 5-O-β-D-glucoside 3-O-β-D-sambubioside
For diagram of anthocyanidin sambubioside biosynthesis, click here
Glossary: anthocyanidin 3-O-β-D-sambubioside = anthocyanidin 3-O-(β-D-xylosyl-(1→2)-β-D-glucoside)
Systematic name: UDP-α-D-glucose:anthocyanidin-3-O-β-D-sambubioside 5-O-glucosyltransferase
Comments: Isolated from the plant Matthiola incana (stock). No activity with anthocyanidin 3-O-glucosides.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Teusch, M., Forkmann, G. and Seyffert, W. Genetic control of UDP-glucose: anthocyanin 5-O-glucosyltransferase from flowers of Matthiola incana R.Br. Planta 168 (1986) 586–591. [PMID: 24232337]
[EC 2.4.1.295 created 2013]
 
 
EC 2.4.2.51     
Accepted name: anthocyanidin 3-O-glucoside 2′′′-O-xylosyltransferase
Reaction: UDP-α-D-xylose + an anthocyanidin 3-O-β-D-glucoside = UDP + an anthocyanidin 3-O-β-D-sambubioside
For diagram of anthocyanidin sambubioside biosynthesis, click here
Glossary: anthocyanidin 3-O-β-D-sambubioside = anthocyanidin 3-O-(β-D-xylosyl-(1→2)-β-D-glucoside)
Other name(s): uridine 5′-diphosphate-xylose:anthocyanidin 3-O-glucose-xylosyltransferase; UGT79B1
Systematic name: UDP-α-D-xylose:anthocyanidin-3-O-β-D-glucoside 2′′′-O-xylosyltransferase
Comments: Isolated from the plants Matthiola incana (stock) [1] and Arabidopsis thaliana (mouse-eared cress) [2]. The enzyme has similar activity with the 3-glucosides of pelargonidin, cyanidin, delphinidin, quercetin and kaempferol as well as with cyanidin 3-O-rhamnosyl-(1→6)-glucoside and cyanidin 3-O-(6-acylglucoside). There is no activity with other UDP-sugars or with cyanidin 3,5-diglucoside.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Teusch, M. Uridine 5′-diphosphate-xylose:anthocyanidin 3-O-glucose-xylosyltransferase from petals of Matthiola incana R.Br. Planta 169 (1986) 559–563. [PMID: 24232765]
2.  Yonekura-Sakakibara, K., Fukushima, A., Nakabayashi, R., Hanada, K., Matsuda, F., Sugawara, S., Inoue, E., Kuromori, T., Ito, T., Shinozaki, K., Wangwattana, B., Yamazaki, M. and Saito, K. Two glycosyltransferases involved in anthocyanin modification delineated by transcriptome independent component analysis in Arabidopsis thaliana. Plant J. 69 (2012) 154–167. [DOI] [PMID: 21899608]
[EC 2.4.2.51 created 2013]
 
 


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