The Enzyme Database

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Accepted name: xylogalacturonan β-1,3-xylosyltransferase
Reaction: Transfers a xylosyl residue from UDP-D-xylose to a D-galactose residue in xylogalacturonan, forming a β-1,3-D-xylosyl-D-galactose linkage.
Other name(s): xylogalacturonan xylosyltransferase; XGA xylosyltransferase
Systematic name: UDP-D-xylose:xylogalacturonan 3-β-D-xylosyltransferase
Comments: Involved in plant cell wall synthesis. The enzyme from Arabidopsis thaliana also transfers D-xylose from UDP-D-xylose onto oligogalacturonide acceptors. The enzyme did not show significant activity with UDP-glucose, UDP-galactose, or UDP-N-acetyl-D-glucosamine as sugar donors.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Jensen, J.K., Sorensen, S.O., Harholt, J., Geshi, N., Sakuragi, Y., Moller, I., Zandleven, J., Bernal, A.J., Jensen, N.B., Sorensen, C., Pauly, M., Beldman, G., Willats, W.G. and Scheller, H.V. Identification of a xylogalacturonan xylosyltransferase involved in pectin biosynthesis in Arabidopsis. Plant Cell 20 (2008) 1289–1302. [PMID: 18460606]
[EC created 2009]

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