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messenger

messenger (mes´en-jer)

1. That which carries a message. 2. Having message-carrying properties.
first m. a hormone that binds to a receptor on the surface cell and, in so doing, communicates with intracellular metabolic processes.
second m. an intermediary molecule that is generated as a consequence of hormone-receptor interaction; e.g., see adenosine 3´,5´-cyclic monophosphate; guanosine 3´,5´-cyclic monophosphate; calcium; inositide.

 

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