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process for selective alkylation of sh groups in proteins and peptides for the study of complex proteinmischungen
process for selective alkylation of sh groups in proteins and peptides for the study of complex proteinmischungen
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机译:蛋白和肽中sh基选择性烷基化的方法,用于研究复杂蛋白
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摘要
Weakly basic molecules containing a double bond (in particular vinylpyridines) are able to react and selectively alkylate -SH groups in proteins, thus preventing their re-oxidation to disulphur bridges. Contrary to conventional alkylating agents, such as iodoacetamide, such molecules reach 100% alkylation of all -SH residues, even in complex proteins, without reacting with other functional groups. Their use is particularly effective in proteome analysis and more generally for analysing proteins in which the -SH groups should be blocked. Additionally, the use of vinylpyridines partially or totally deuterated, and thus with a mass difference as compared to non-deuterated vinylpyridines, allows studies of induction/repression of protein synthesis.
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