Function
PKA phosphorylates proteins which have the motif Arginine-Arginine-X-Serine exposed, in turn (de)activating the proteins. As protein expression varies from cell type to cell type, the proteins that are available for phosphorylation will depend upon the cell in which PKA is present. Thus, the effects of PKA activation vary with cell type:
Read more about this topic: Protein Kinase A
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