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Activation of heterotrimeric G proteins is generally believed to induce dissociation of Gα and Gβγ subunits, which are then free to bind to and change the catalytic activity of a variety of intracellular enzymes. We have previously found that in cells, Gαq subunits remain complexed with its major effector, phospholipase Cβ1, through the activation cycle. To determine whether this behavior may be operative...
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