The regulation of enzyme activity by reversible phosphorylation.
D000818:Animals; D001921:Brain / Q000378:metabolism*; D009419:Nerve Tissue Proteins / Q000378:metabolism*; D010749:Phosphoprotein Phosphatases / Q000378:metabolism*; D010750:Phosphoproteins / Q000378:metabolism*; D010766:Phosphorylation; D011494:Protein Kinases / Q000378:metabolism*
D009419:Nerve Tissue Proteins; D010750:Phosphoproteins; D011494:Protein Kinases; D010749:Phosphoprotein Phosphatases