XTH-Xet | XET5 Xyloglucan xyloglucosyl transferase
AS08 319 | Clonality: Polyclonal | Host: Rabbit | Reactivity: Hordeum vulgare, Oryza sativa
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Two synthetic peptides from highly conserved region of Horderum vulgare XTH-Xet
31.5 | 33 kDa
Molecular interactions between wall polysaccharides, which include cellulose and a range of non-cellulosic polysaccharides such as xyloglucans and (1,3;1,4)-?-d-glucans, are fundamental to cell wall properties. These interactions have been assumed to be non-covalent in nature in most cases. A highly purified barley xyloglucan xyloglucosyl transferase HvXET5 (EC 18.104.22.168), a member of the GH16 group of glycoside hydrolases, catalyses the in vitro formation of covalent linkages between xyloglucans and cellulosic substrates, and between xyloglucans and (1,3;1,4)-?-d-glucans. It is possible that XETs could link different polysaccharides in vivo, and hence influence cell wall strength, flexibility and porosity.
Liu et al. (2013). Brittle Culm1, a COBRA-Like Protein, Functions in Cellulose Assembly through Binding Cellulose Microfibrils. PLoS Genet 9(8): e1003704. doi:10.1371/journal.pgen.1003704 (Oryza sativa, western blot)
Hrmova et al. (2007) A barley xyloglucan xyloglucosyl transferase covalently links xyloglucan, cellulosic substrates and (1,3;1,4)-β. J. Biol. Chem. 82: 12951-12962.