Adenylate Cyclase Mechanism - Inorganic Pyrophosphatase Mechanism

The video explains the G protein signaling pathway, focusing on the activation of adenylate cyclase by the G protein alpha subunit. It details the conversion of ATP to cyclic AMP and inorganic pyrophosphate, highlighting the role of inorganic pyrophosphatase in hydrolyzing pyrophosphate to drive cellular work. The video also discusses the exergonic nature of these reactions and their importance in cellular processes.

Explain the concept of autocatalysis in the context of adenylyl cyclase.

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What is the importance of magnesium ions in the active site of adenylyl cyclase?

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What happens to protein kinase A when cyclic AMP binds to its regulatory subunits?

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Discuss the significance of the negative Delta G in the reaction catalyzed by inorganic pyrophosphatase.

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