Definition of second messenger in English:

second messenger

Line breaks: sec¦ond mes¦sen|ger

noun

Physiology
  • A substance whose release within a cell is promoted by a hormone and which brings about a response by the cell.
    More example sentences
    • Fatty acids function as second messengers and coregulators of gene transcription.
    • Examples of proteins and second messengers that appear to act in multiple response pathways are also described.
    • This enzyme is abundantly expressed in the lung tissue and thereby stabilizes the second messenger.

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