What Role Do Phosphatases Play in Signal Transduction Pathways

question 28

Multiple Choice

What role do phosphatases play in signal transduction pathways?

• A) They transfer a phosphate group from one protein in the pathway to the next molecule in the series.
• B) They activate protein kinases by phosphorylation.
• C) They amplify the second messenger cAMP.
• D) They inactivate protein kinases to turn off signal transduction.

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