Abstract
Hydroxyproline-rich glycoproteins (HRGPs) are structural components of plant cell walls and may also function in the processes of plant development, growth, and disease resistance [reviewed in 1,2]. In higher plants, these cell wall HRGPs consist of 35–45% hydroxyproline (Hyp) and are also relatively rich in serine, valine, tyrosine and lysine. A repeating pentapeptide sequence, Ser-(Hyp)4, further characterizes these unusual glycoproteins which are often referred to as “extensins”. Most of the hydroxyproline residues are O-glycosidically attached to short oligoarabinosides, while some of the serine residues are O-glycosidically linked to galactose.
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Showalter, A.M., Bell, J.N., Cramer, C.L., Bailey, J.A., Varner, J.E., Lamb, C.J. (1986). Accumulation of Hydroxyproline-Rich Glycoprotein mRNAs in Biologically Stressed Cell Cultures and Hypocotyls. In: Bailey, J.A. (eds) Biology and Molecular Biology of Plant-Pathogen Interactions. NATO ASI Series, vol 1. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-82849-2_21
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DOI: https://doi.org/10.1007/978-3-642-82849-2_21
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