Fixed Dataset link URIs and cvParams Investigation of the rates of phosphorylation and lysine acetylation in response to proximal modifications. In vitro kinase, phosphatase, acetyltransferase and deacetylase reactions were performed using synthetic peptide variants with or without modification of phosphorylation and/or lysine acetylation. Substrates and products were monitored by nano-liquid chromatography - selected reaction monitoring (nLC-SRM)