Biochemistry

Learn the toughest concepts covered in Biochemistry with step-by-step video tutorials and practice problems by world-class tutors

12. Biosignaling

Stimulatory Adenylate Cyclase GPCR Signaling

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Stimulatory Adenylate Cyclase GPCR Signaling

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Stimulatory Adenylate Cyclase GPCR Signaling

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Problem

Which of the following represents the best order of signal transduction for the β-adrenergic receptor?

4
Problem

Which of the following molecules is NOT involved in signal transduction of the β-adrenergic GPCR?

5
Problem

Which of the following reactions does the enzyme adenylate cyclase catalyze?

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Problem

In response to a ligand binding a GPCR, a particular G protein (G s) activates adenylate cyclase. If a cell has a mutation where the G protein can no longer hydrolyze GTP, which of the following would be the result?

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Problem

When epinephrine binds to its GPCR activating the cAMP cascade, all of the following happen EXCEPT: