Please use this identifier to cite or link to this item: https://scholarhub.balamand.edu.lb/handle/uob/2450
Title: Protein- and pH-dependent binding of nascent pectin and glucuronoarabinoxylan to xyloglucan in pea
Authors: Rizk, Sandra E.
Abdel-Massih, Roula
Baydoun, Elias A-H.
Brett, Cristopher T.
Affiliations: Department of Biology 
Keywords: Binding (pectin)
Glucuronoarabinoxylan
Glycoprotein
Pisum
Xyloglucan
Subjects: Pectin
Issue Date: 2000
Part of: Planta
Volume: 211
Issue: 3
Start page: 423
End page: 429
Abstract: 
Nascent pectin and glucuronoarabinoxylan, synthesised in vitro by membrane-bound enzymes from etiolated pea (Pisum sativum L.) epicotyls, were found to bind to pea xyloglucan in a pH-dependent manner. The binding was maximum at low pH (3–4), and decreased to almost zero at pH 6. The binding was probably non-covalent and reached saturation within 5 min. Removal of the fucose residues of xyloglucan decreased the degree of binding. Removal by protease of the proteins attached to nascent pectin and glucuronoarabinoxylan greatly reduced the maximum binding and abolished the pH-dependence. The observed binding may be of considerable significance in the process of cell-wall assembly and in the control of cell extension.
URI: https://scholarhub.balamand.edu.lb/handle/uob/2450
Ezproxy URL: Link to full text
Type: Journal Article
Appears in Collections:Department of Biology

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