When a ligand binds to a GPCR, this promotes interaction between receptor and G-protein on the interior surface of membrane. The next step is

Question

Accepted Answer

The α subunit can then exchange GDP for GTP.

Answer

The β/γ heterodimer subunit can then exchange GDP for GTP.

Answer

The α subunit can then dissociate from the β/γ heterodimer

Answer

The α subunit exchanges GDP for GTP and binds on to the β/γ heterodimer

Answer

The α subunit exchanges GTP for GDP and binds on to the β/γ heterodimer

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