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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.

Year introduced: 1989

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Tree Number(s): G02.111.820.800, G04.835.800

MeSH Unique ID: D015290

Entry Terms:

  • Second Messenger System
  • System, Second Messenger
  • Systems, Second Messenger
  • Intracellular Second Messengers
  • Intracellular Second Messenger
  • Messengers, Intracellular Second
  • Second Messenger, Intracellular
  • Second Messengers, Intracellular
  • Second Messengers
  • Messenger, Second
  • Messengers, Second
  • Second Messenger

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