Background of the antigen
Protein phosphatase 1 (PP1) is essential for cell division, and participates in the regulation of glycogen metabolism, muscle contractility and protein synthesis. The protein is involved in regulation of ionic conductances and long term synaptic plasticity. It may play an important role in dephosphorylating substrates such as the postsynaptic density associated Ca (2+)/calmodulin dependent protein kinase II.PP1 comprises a catalytic subunit, PPP1CA, PPP1CB or PPP1CC (PP1C gamma), which is folded into its native form by inhibitor 2 and glycogen synthetase kinase 3, and then complexed to one or several targeting or regulatory subunits. PPP1R12A and PPP1R12B mediate binding to myosin. PPP1R3A, PPP1R3B, PPP1R3C and PPP1R3D mediate binding to glycogen.
