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Posttranslational carbonylation of proteins by the covalent attachment of the lipid peroxidation product 4-hydroxy-2-nonenal (HNE) is a biomarker of oxidative stress. Tandem mass spectrometry (MS/MS) has become an essential tool for characterization of this modification. Chemical tagging methods have been used to facilitate the immunoaffinity-based enrichment or even quantification of HNE-modified...
Protein carbonylation has been associated with various pathophysiological processes. A representative reactive carbonyl species (RCS), 4-hydroxy-2-nonenal (HNE), has been implicated specifically as a causative factor for the initiation and/or progression of various diseases. To date, however, little is known about the proteins and their modification sites susceptible to “carbonyl stress” by this RCS,...
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