Biosignaling - G-protein-coupled Receptors cAMP & Adenylate Cyclase

The video tutorial explores bio signaling pathways, focusing on G protein-coupled receptors (GPCRs) and their role in signal transduction. It explains how external signals like epinephrine bind to receptors, causing conformational changes that activate G proteins. This activation leads to the production of cyclic AMP, which in turn activates protein kinase A, initiating a cascade of phosphorylation events. The video also discusses the regulation of G protein activity and the importance of cyclic AMP in cellular responses.

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