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Updated: Jul 2, 2026

Identification of Post-translational Modifications of Plant Protein Complexes
Published on: February 22, 2014
Xyloglucan fucosyltransferase, an enzyme involved in plant cell wall biosynthesis
R M Perrin1, A E DeRocher, M Bar-Peled
1Michigan State University-Department of Energy (MSU-DOE) Plant Research Laboratory, Michigan State University, East Lansing, MI 48824, USA.
Abstract:
Cell walls are crucial for development, signal transduction, and disease resistance in plants. Cell walls are made of cellulose, hemicelluloses, and pectins. Xyloglucan (XG), the principal load-bearing hemicellulose of dicotyledonous plants, has a terminal fucosyl residue. A 60-kilodalton fucosyltransferase (FTase) that adds this residue was purified from pea epicotyls. Peptide sequence information from the pea FTase allowed the cloning of a homologous gene, AtFT1, from Arabidopsis. Antibodies raised against recombinant AtFTase immunoprecipitate FTase enzyme activity from solubilized Arabidopsis membrane proteins, and AtFT1 expressed in mammalian COS cells results in the presence of XG FTase activity in these cells.
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