Cellular proteins exist in a dynamic state in which they are continuously synthesized and degraded. Bottom-up proteomics technologies allow for the parallel assessment of turnover for thousands of proteins. Here, a new workflow for robust, time- and cost-efficient measurements of peptide turnover was established enabling the global study of hitherto widely neglected isoform- and modification-specific protein turnover. Further, the enormous potential of such measurements for prioritization of functional relevant modification sites is illustrated.
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Cellular proteins exist in a dynamic state in which they are continuously synthesized and degraded. Bottom-up proteomics technologies allow for the parallel assessment of turnover for thousands of proteins. Here, a new workflow for robust, time- and cost-efficient measurements of peptide turnover was established enabling the global study of hitherto widely neglected isoform- and modification-specific protein turnover. Further, the enormous potential of such measurements for prioritization of fun...
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