Journal
TRENDS IN PLANT SCIENCE
Volume 6, Issue 9, Pages 414-419Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/S1360-1385(01)02045-3
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Pectin methylesterases catalyse the demethylesterification of cell wall polygalacturonans. In dicot plants, these ubiquitous cell wall enzymes are involved in important developmental processes including cellular adhesion and stem elongation. Here, I highlight recent studies that challenge the accepted views of the mechanism and function of pectin methylesterases, including the co-secretion of pectins and pectin methylesterases into the apoplasm, new action patterns of mature pectin methylesterases and a possible function of the pro regions of pectin methylesterases as intramolecular chaperones.
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