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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Guardado en:
Detalles Bibliográficos
Publicado: 2012
Materias:
Cell expansion
Extensins
O-glycoproteins
O-glycosylation
Plant cell wall
Proline hydroxylation
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1664462X_v3_nMAY_p_Velasquez
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 paper:paper_1664462X_v3_nMAY_p_Velasquez
record_format dspace
spelling paper:paper_1664462X_v3_nMAY_p_Velasquez2023-06-08T16:26:07Z Recent advances on the posttranslational modifications of EXTs and their roles in plant cell walls 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. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1664462X_v3_nMAY_p_Velasquez 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
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.
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
publishDate 2012
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1664462X_v3_nMAY_p_Velasquez
http://hdl.handle.net/20.500.12110/paper_1664462X_v3_nMAY_p_Velasquez
_version_ 1768545849871171584

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