Phosphoproteins are a group of proteins that are chemically bonded to a substance containing phosphoric acid. Phosphorylation and dephosphorylation of these proteins is carried out by protein kinases and phosphatases, respectively. Phosphoproteins are usually involved in signal transduction pathways that underlie many cellular processes. Phosphorylation regulates the activity of many enzymes, thereby altering their function.
MSD provides solutions to support and simplify your intracellular signaling needs. We offer singleplex and multiplex assays to measure phosphoproteins such as phospho-AKT, phospho-ERK, and phospho-STAT3.