G protein coupled receptor and G protein

G protein coupled receptor and G protein

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Credit: Carol & Mike Werner/Visuals Unlimited, Inc. /SCIENCE PHOTO LIBRARY

Caption: Biomedical illustration of G protein coupled receptor and G protein. The G protein receptors span the bilipid cell membrane and are involved in nearly every physiological function. They react to stimuli from a variety of sources including light-sensitive compounds, odors, pheromones, hormones and neurotransmitters. They undergo a conformational change which activates an associated G protein. The G protein consists of three parts: alpha, beta and gamma, each of which may have a separate function within the cell. Here, the alpha portion activates the enzyme adenylate cyclase and the beta-gamma complex activates an ion channel. Because they are involved in many diseases, G protein coupled receptors are the targets of nearly 50% of all modern medicinal.

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Keywords: adenylate cyclase, bilipid, biomedical, cell membrane, chemistry, enzyme, g protein, human biology, illustration, ion channel, medical, multicolored, no-one, nobody, protein, receptor, side view

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