WebNov 10, 2009 · Fig. 1 H 2 S covalently modifies proteins through S-sulfhydration of cysteine residues. (A) Liver lysates treated with 100 μM NaHS for 30 min at 37°C and subjected to the modified biotin switch assay with antibody against biotin (Anti-biotin Ab) to detect S-sulfhydration show numerous sulfhydrated proteins.(B) LC-MS/MS of a subset of the … WebDec 10, 2016 · The biotin switch assay has been widely applied to the quantitative analysis of S-nitrosylation in different disease models and is now also emerging as a valuable research tool for other oxidative ...

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WebMar 1, 2004 · Biotin switch assay, Western blot, and protein purification The biotin switch assay was performed essentially as previously described [22] , [42] . Extracts were adjusted to 0.5 mg/ml of protein and equal amounts were blocked with 4 volumes of blocking buffer (225 mM Hepes, pH 7.7, 0.9 mM EDTA, 0.09 mM neocuproine, 2.5% SDS, and 20 mM … WebSep 22, 2009 · Endogenous S-nitrosylation of stargazin. (A) HEK cells expressing WT or C302S mutant of stargazin were treated with Cys-NO (50 μM) for 5–10 min, and analyzed by the biotin-switch assay.(B) The quantity of SNO-stargazin from A was measured by scanning densitometry, and expressed as percentage WT SNO-stargazin.Data are … how many grams of caffeine to overdose

Characterization and application of the biotin-switch assay for the ...

WebDownload scientific diagram Modified biotin switch assay. from publication: Immunoprecipitation methods to identify S-glutathionylation in target proteins S-glutathionylation is a reversible ... WebSep 9, 2009 · Cell extracts were analyzed by the biotin-switch assay as described before with modifications . Briefly, cells were extracted in HEN buffer (250 mM Hepes/1 mM EDTA/0.1 mM Neocuproine, pH 7.7) containing Triton X-100 (1%). Extracts were treated with methyl methanethiosulfonate (Sigma–Aldrich) and SDS (1%) at 50 °C for 20 min. … WebS-nitrosylation (or S-nitrosation, SNO) is an oxidative posttranslational modification to the thiol group of a cysteine amino acid residue. There are several methods to detect SNO modifications, mostly based on the classic biotin-switch assay, where the labile SNO sites are replaced with a stable biotin moiety to facilitate enrichment of the modified proteins. hovey and associates