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In the discovery of G proteins, what crucial role do they play in the cell communication process?
Initiate signaling cascades within the cell
Provide energy for cellular functions
Store genetic information
Control cell division
Answer
Acting as molecular switches within cells, G proteins play a pivotal role in initiating intricate signaling cascades. These cascades are set in motion when G proteins undergo a conformational change, triggered by the binding of a signaling molecule such as a hormone or neurotransmitter to a G protein-coupled receptor on the cell's surface.
Uncovering the Legacy of Alfred G. Gilman: A Pharmacologist Extraordinaire
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