What happens to the beta-gamma subunit after receptor activation?

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Multiple Choice

What happens to the beta-gamma subunit after receptor activation?

Explanation:
Activation of a GPCR causes the alpha subunit to exchange GDP for GTP and dissociate from the beta-gamma dimer. The beta-gamma subunit then goes on to regulate downstream effectors, such as certain ion channels and enzymes. This is why the beta-gamma subunit dissociates from the alpha and can activate effectors. It does not bind GDP after activation, is not degraded, and does not inhibit the receptor.

Activation of a GPCR causes the alpha subunit to exchange GDP for GTP and dissociate from the beta-gamma dimer. The beta-gamma subunit then goes on to regulate downstream effectors, such as certain ion channels and enzymes. This is why the beta-gamma subunit dissociates from the alpha and can activate effectors. It does not bind GDP after activation, is not degraded, and does not inhibit the receptor.

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