Term Name: phosphoprotein phosphatase activity
Synonyms: phosphoprotein phosphohydrolase activity, protein phosphatase activity, protein phosphatase-1 activity, protein phosphatase-2A activity, protein phosphatase-2B activity, protein phosphatase-2C activity
Definition: Catalysis of the reaction: a phosphoprotein + H2O = a protein + phosphate. Together with protein kinases, these enzymes control the state of phosphorylation of cellular proteins and thereby provide an important mechanism for regulating cellular activity.
Ontology: GO: Molecular Function [GO:0004721]    QuickGO    AmiGO

Relationships
is a type of: catalytic activity, acting on a protein phosphatase activity
has subtype: [3-methyl-2-oxobutanoate dehydrogenase (lipoamide)]-phosphatase activity [acetyl-CoA carboxylase]-phosphatase activity [glycogen-synthase-D] phosphatase activity [hydroxymethylglutaryl-CoA reductase (NADPH)]-phosphatase activity [isocitrate dehydrogenase (NADP+)] phosphatase activity [phosphorylase] phosphatase activity [pyruvate kinase]-phosphatase activity histone phosphatase activity MAP kinase phosphatase activity myosin-light-chain-phosphatase activity protein arginine phosphatase activity protein histidine phosphatase activity protein serine/threonine phosphatase activity protein tyrosine phosphatase activity protein tyrosine/serine/threonine phosphatase activity protein tyrosine/threonine phosphatase activity transmembrane receptor protein phosphatase activity
negatively regulated by: protein phosphatase inhibitor activity
positively regulated by: protein phosphatase activator activity
regulated by: protein phosphatase regulator activity