Recent advances on the posttranslational modifications of EXTs and their roles in plant cell walls

The genetic set up and the enzymes that define the O-glycosylation sites and transfer the activated sugars to cell wall glycoprotein Extensins (EXTs) have remained unknown for a long time. We are now beginning to see the emerging components of the molecular machinery that assembles these complex O-g...

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Detalles Bibliográficos
Autores principales:	Velasquez, M., Salter, J.S., Dorosz, J.G., Petersen, B.L., Estevez, J.M.
Formato:	JOUR
Materias:	Cell expansion Extensins O-glycoproteins O-glycosylation Plant cell wall Proline hydroxylation
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_1664462X_v3_nMAY_p_Velasquez
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_1664462X_v3_nMAY_p_Velasquez
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spelling	todo:paper_1664462X_v3_nMAY_p_Velasquez2023-10-03T16:29:10Z Recent advances on the posttranslational modifications of EXTs and their roles in plant cell walls Velasquez, M. Salter, J.S. Dorosz, J.G. Petersen, B.L. Estevez, J.M. Cell expansion Extensins O-glycoproteins O-glycosylation Plant cell wall Proline hydroxylation The genetic set up and the enzymes that define the O-glycosylation sites and transfer the activated sugars to cell wall glycoprotein Extensins (EXTs) have remained unknown for a long time. We are now beginning to see the emerging components of the molecular machinery that assembles these complex O-glycoproteins on the plant cell wall. Genes conferring the posttranslational modifications, i.e., proline hydroxylation and subsequent O-glycosylation, of the EXTs have been recently identified. In this review we summarize the enzymes that define the O-glycosylation sites on the O-glycoproteins, i.e., the prolyl 4-hydroxylases (P4Hs), the glycosyltransferases that transfer arabinose units (named arabinosyltransferases, AraTs), and the one responsible for transferring a single galactose (galactosyltransferase, GalT) on the protein EXT backbones. We discuss the effects of posttranslational modifications on the structure and function of extensins in plant cell walls. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_1664462X_v3_nMAY_p_Velasquez
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Cell expansion Extensins O-glycoproteins O-glycosylation Plant cell wall Proline hydroxylation
spellingShingle	Cell expansion Extensins O-glycoproteins O-glycosylation Plant cell wall Proline hydroxylation Velasquez, M. Salter, J.S. Dorosz, J.G. Petersen, B.L. Estevez, J.M. Recent advances on the posttranslational modifications of EXTs and their roles in plant cell walls
topic_facet	Cell expansion Extensins O-glycoproteins O-glycosylation Plant cell wall Proline hydroxylation
description	The genetic set up and the enzymes that define the O-glycosylation sites and transfer the activated sugars to cell wall glycoprotein Extensins (EXTs) have remained unknown for a long time. We are now beginning to see the emerging components of the molecular machinery that assembles these complex O-glycoproteins on the plant cell wall. Genes conferring the posttranslational modifications, i.e., proline hydroxylation and subsequent O-glycosylation, of the EXTs have been recently identified. In this review we summarize the enzymes that define the O-glycosylation sites on the O-glycoproteins, i.e., the prolyl 4-hydroxylases (P4Hs), the glycosyltransferases that transfer arabinose units (named arabinosyltransferases, AraTs), and the one responsible for transferring a single galactose (galactosyltransferase, GalT) on the protein EXT backbones. We discuss the effects of posttranslational modifications on the structure and function of extensins in plant cell walls.
format	JOUR
author	Velasquez, M. Salter, J.S. Dorosz, J.G. Petersen, B.L. Estevez, J.M.
author_facet	Velasquez, M. Salter, J.S. Dorosz, J.G. Petersen, B.L. Estevez, J.M.
author_sort	Velasquez, M.
title	Recent advances on the posttranslational modifications of EXTs and their roles in plant cell walls
title_short	Recent advances on the posttranslational modifications of EXTs and their roles in plant cell walls
title_full	Recent advances on the posttranslational modifications of EXTs and their roles in plant cell walls
title_fullStr	Recent advances on the posttranslational modifications of EXTs and their roles in plant cell walls
title_full_unstemmed	Recent advances on the posttranslational modifications of EXTs and their roles in plant cell walls
title_sort	recent advances on the posttranslational modifications of exts and their roles in plant cell walls
url	http://hdl.handle.net/20.500.12110/paper_1664462X_v3_nMAY_p_Velasquez
work_keys_str_mv	AT velasquezm recentadvancesontheposttranslationalmodificationsofextsandtheirrolesinplantcellwalls AT salterjs recentadvancesontheposttranslationalmodificationsofextsandtheirrolesinplantcellwalls AT doroszjg recentadvancesontheposttranslationalmodificationsofextsandtheirrolesinplantcellwalls AT petersenbl recentadvancesontheposttranslationalmodificationsofextsandtheirrolesinplantcellwalls AT estevezjm recentadvancesontheposttranslationalmodificationsofextsandtheirrolesinplantcellwalls
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Recent advances on the posttranslational modifications of EXTs and their roles in plant cell walls

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