Protein phosphatase 1F (PPM1F, also known as CaM-kinase phosphatase or CaMKPase) dephosphorylates the autophosphorylated threonine residue of CaMKII (CAMK2), thus inactivating CaMKII kinase activity (Ishida et al. 1998).
protein serine/threonine phosphatase activity of PPM1F [cytosol]
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