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Title: Quantitative analysis of S-nitrosylated proteins
Authors: Torta, F. 
Bachi, A.
Keywords: Biotin switch
Mass spectrometry
Issue Date: 2012
Citation: Torta, F.,Bachi, A. (2012). Quantitative analysis of S-nitrosylated proteins. Methods in Molecular Biology 893 : 405-416. ScholarBank@NUS Repository.
Abstract: Protein S-nitrosylation is the covalent binding of nitric oxide to specific cysteine residues in proteins. This modification influences a large number of cellular events and signaling processes. As this process is finely regulated in vivo, the level of nitrosylation changes in response to different stimuli. Since its introduction, the biotin-switch technique (BST) is the most used indirect method for the study of S-nitrosylation both in vivo and in vitro and its coupling with mass spectrometry-based proteomics lead to the identification of the S-nitroso proteome in different organisms. However, this method does not give any information about the posttranslational modification level on the same residue in different biological conditions. Quantitative proteomic methods can assess the relative change in S-nitrosylation for hundreds sites in a single experiment. Stable isotope labeling by aminoacids in cell culture (SILAC) is one of the most used and accurate quantitative techniques in MS-based proteomics. Here we present a SILAC-based method for the quantification of endogenously S-nitrosylated proteins in RAW 264.7 cells. © 2012 Springer Science+Business Media, LLC.
Source Title: Methods in Molecular Biology
ISBN: 9781617798849
ISSN: 10643745
DOI: 10.1007/978-1-61779-885-6_25
Appears in Collections:Staff Publications

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