Secondary Messenger System and Insulin

Insulin and the Second Messenger System. nsulin is a hormone. And like many hormones, insulin is a protein. Insulin is secreted by groups of cells within the pancreas called islet cells. Second messengers are molecules that relay signals from receptors on the cell surface to target molecules inside the cell, in the cytoplasm or nucleus. They relay the signals of hormones like epinephrine (adrenalin), growth factors, and others, and cause some kind of change in the activity of the cell. They greatly amplify the strength of the signal.Secondary messengers are a component of signal transduction cascades. Read more: http://en.wikipedia.org/wiki/Second_messenger_system

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Channels: Cell Biology Molecular Biology

Tags: Insulin Second Messenger System

Uploaded by: ( Send Message ) on 23-11-2010.

Duration: 6m 5s