+**Protein Kinase A** (PKA) is a family of [Protein Kinase](/wiki/protein_kinase) enzymes central to cell signaling. Activated by [cAMP](/wiki/cAMP), it orchestrates a wide array of cellular processes by adding phosphate groups to target proteins.
+## See also
+- [Signal Transduction](/wiki/signal_transduction)
+- [Enzyme](/wiki/enzyme)
+- [Cell Signaling](/wiki/cell_signaling)
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