WGA-based lectin affinity gel electrophoresis: A novel method for the detection of O-GlcNAc-modified proteins.

Post-translational modification with O-linked β-N-acetylglucosamine (O-GlcNAc) occurs selectively on serine and/or threonine residues of cytoplasmic and nuclear proteins, and dynamically regulates their molecular functions. Since conventional strategies to evaluate the O-GlcNAcylation level of a spe...

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Main Authors: Yuji Kubota, Ko Fujioka, Mutsuhiro Takekawa
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2017-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC5501588?pdf=render
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author Yuji Kubota
Ko Fujioka
Mutsuhiro Takekawa
author_facet Yuji Kubota
Ko Fujioka
Mutsuhiro Takekawa
author_sort Yuji Kubota
collection DOAJ
description Post-translational modification with O-linked β-N-acetylglucosamine (O-GlcNAc) occurs selectively on serine and/or threonine residues of cytoplasmic and nuclear proteins, and dynamically regulates their molecular functions. Since conventional strategies to evaluate the O-GlcNAcylation level of a specific protein require time-consuming steps, the development of a rapid and easy method for the detection and quantification of an O-GlcNAcylated protein has been a challenging issue. Here, we describe a novel method in which O-GlcNAcylated and non-O-GlcNAcylated forms of proteins are separated by lectin affinity gel electrophoresis using wheat germ agglutinin (WGA), which primarily binds to N-acetylglucosamine residues. Electrophoresis of cell lysates through a gel containing copolymerized WGA selectively induced retardation of the mobility of O-GlcNAcylated proteins, thereby allowing the simultaneous visualization of both the O-GlcNAcylated and the unmodified forms of proteins. This method is therefore useful for the quantitative detection of O-GlcNAcylated proteins.
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spelling doaj.art-592ce765d5764e06b7e21664a47039412022-12-21T20:07:50ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01127e018071410.1371/journal.pone.0180714WGA-based lectin affinity gel electrophoresis: A novel method for the detection of O-GlcNAc-modified proteins.Yuji KubotaKo FujiokaMutsuhiro TakekawaPost-translational modification with O-linked β-N-acetylglucosamine (O-GlcNAc) occurs selectively on serine and/or threonine residues of cytoplasmic and nuclear proteins, and dynamically regulates their molecular functions. Since conventional strategies to evaluate the O-GlcNAcylation level of a specific protein require time-consuming steps, the development of a rapid and easy method for the detection and quantification of an O-GlcNAcylated protein has been a challenging issue. Here, we describe a novel method in which O-GlcNAcylated and non-O-GlcNAcylated forms of proteins are separated by lectin affinity gel electrophoresis using wheat germ agglutinin (WGA), which primarily binds to N-acetylglucosamine residues. Electrophoresis of cell lysates through a gel containing copolymerized WGA selectively induced retardation of the mobility of O-GlcNAcylated proteins, thereby allowing the simultaneous visualization of both the O-GlcNAcylated and the unmodified forms of proteins. This method is therefore useful for the quantitative detection of O-GlcNAcylated proteins.http://europepmc.org/articles/PMC5501588?pdf=render
spellingShingle Yuji Kubota
Ko Fujioka
Mutsuhiro Takekawa
WGA-based lectin affinity gel electrophoresis: A novel method for the detection of O-GlcNAc-modified proteins.
PLoS ONE
title WGA-based lectin affinity gel electrophoresis: A novel method for the detection of O-GlcNAc-modified proteins.
title_full WGA-based lectin affinity gel electrophoresis: A novel method for the detection of O-GlcNAc-modified proteins.
title_fullStr WGA-based lectin affinity gel electrophoresis: A novel method for the detection of O-GlcNAc-modified proteins.
title_full_unstemmed WGA-based lectin affinity gel electrophoresis: A novel method for the detection of O-GlcNAc-modified proteins.
title_short WGA-based lectin affinity gel electrophoresis: A novel method for the detection of O-GlcNAc-modified proteins.
title_sort wga based lectin affinity gel electrophoresis a novel method for the detection of o glcnac modified proteins
url http://europepmc.org/articles/PMC5501588?pdf=render
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