Example of cAMP as a second messenger
This diagram shows the mechanism for the formation of cyclic AMP (cAMP). cAMP serves as a second messenger to activate or inactivate proteins within the cell. Termination of the signal occurs when an enzyme called phosphodiesterase converts cAMP into AMP.
Source
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"OpenStax College, Propagation of the Signal. October 16, 2013."
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OpenStax CNX
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