RRC ID 52303
著者 Kubota Y, Fujioka K, Takekawa M.
タイトル WGA-based lectin affinity gel electrophoresis: A novel method for the detection of O-GlcNAc-modified proteins.
ジャーナル PLoS One
Abstract 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.
巻・号 12(7)
ページ e0180714
公開日 2017-7-7
DOI 10.1371/journal.pone.0180714
PII PONE-D-16-35933
PMID 28686627
PMC PMC5501588
MeSH Acetylglucosamine / chemistry* Acetylglucosamine / metabolism Electrophoresis Glycosylation Protein Processing, Post-Translational* Proteins / chemistry Proteins / isolation & purification Proteins / metabolism* Wheat Germ Agglutinins / chemistry
IF 2.74
引用数 4
リソース情報
ヒト・動物細胞 293(RCB1637) COS-7(RCB0539)