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Gene Review

XYL1  -  bifunctional alpha-l-arabinofuranosidase/b...

Arabidopsis thaliana

Synonyms: ALPHA-XYLOSIDASE 1, ATXYL1, AXY3, F24J5.20, F24J5_20, ...
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High impact information on ATXYL1/XYL1

  • ARAf and XYL1 can also release D-Xyl from these substrates but less efficiently than XYL4 [1].
  • ARAf and XYL1 have highest specificity for p-nitrophenyl-alpha-L-arabinofuranoside and XYL4 for p-nitrophenyl-beta-D-xylopyranoside and natural substrates such as xylobiose and xylotetraose [1].
  • These results show that AtXYL1 encodes for an apoplastic alpha-xylosidase active against xyloglucan oligosaccharides that probably also has activity against p-nitrophenyl-alpha-D-glucoside [2].
  • AtXYL1 comprised three exons and encoded a peptide that was 915 amino acids long, with a potential signal peptide of 22 amino acids and eight possible N-glycosylation sites [2].


  1. Purification and characterization of enzymes exhibiting beta-D-xylosidase activities in stem tissues of Arabidopsis. Minic, Z., Rihouey, C., Do, C.T., Lerouge, P., Jouanin, L. Plant Physiol. (2004) [Pubmed]
  2. Cloning and expression pattern of a gene encoding an alpha-xylosidase active against xyloglucan oligosaccharides from Arabidopsis. Sampedro, J., Sieiro, C., Revilla, G., González-Villa, T., Zarra, I. Plant Physiol. (2001) [Pubmed]
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