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Insulin receptor, illustration
Insulin receptor, illustration. The insulin receptor (blue) is a transmembrane protein, that becomes activated through the binding of insulin (orange). Insulin binding induces structural changes within the receptor. These changes trigger a biochemical chain of events inside the cell (signal transduction), that finally leads to the transport of glucose into the cell via activation of glucose transporters (channel proteins)., by MEDICAL GRAPHICS/MICHAEL HOFFMANN/SCIENCE PHOTO LIBRARY
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