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
Channels: Cell Biology Molecular Biology
Tags: Insulin Second Messenger System
Uploaded by: watchme ( Send Message ) on 23-11-2010.
Duration: 6m 5s
