Enzymatic interconversion of active and inactive forms of enzymes.

Adenosine Monophosphate/metabolism Allosteric Regulation Animals Cyclic AMP/physiology DNA-Directed RNA Polymerases/metabolism Enzyme Activation/drug effects Enzymes/metabolism Epinephrine/pharmacology Escherichia coli/enzymology Glucagon/pharmacology Glutamate-Ammonia Ligase/metabolism Glycogen/metabolism Glycogen Synthase/metabolism Histones/metabolism Lipase/metabolism Liver/enzymology Muscles/enzymology Nucleotidyltransferases/metabolism Phosphorylase Kinase/metabolism Phosphotransferases/metabolism Polyribonucleotide Nucleotidyltransferase/metabolism Pyruvate Dehydrogenase Complex/metabolism Transferases/metabolism

Enzymes Histones Pyruvate Dehydrogenase Complex Adenosine Monophosphate Glycogen Glucagon Cyclic AMP Transferases Glycogen Synthase Phosphotransferases Phosphorylase Kinase Nucleotidyltransferases DNA-Directed RNA Polymerases Polyribonucleotide Nucleotidyltransferase Lipase Glutamate-Ammonia Ligase Epinephrine