See Also: second messenger systems(medicine)
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Second Messenger(health)
messenger(medicine)
Second messenger(medicine)
messenger(dictionary)
Messenger-like RNA(medicine)
Messenger RNA(medicine)
MESSENGER(law)

second messenger systems (medicine)


second messenger systems
Systems in which an intracellular signal is generated in response to an intercellular primary messenger such as a hormone or neurotransmitter. They are intermediate signals in cellular processes such as metabolism, secretion, contraction, phototransduction, and cell growth. Examples of second messenger systems are the adenyl cyclase-cyclic AMP system, the phosphatidylinositol diphosphate-inositol triphosphate system, and the cyclic GMP system.