Which of the following is a G-protein coupled receptor? A) EGF receptor B) insulin receptor C) atrial natriuretic peptide receptor D) inhibitory α₂-receptor E) EPO receptor

Question

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The inhibitory α2-adrenergic receptor (α2U1B12S1U1B0-receptor) is a G-protein coupled receptor. G-protein coupled receptors (GPCRs) are a large family of cell surface receptors that respond to a variety of external signals. The other options listed are not GPCRs: EGF and EPO receptors are tyrosine kinase receptors, the insulin receptor is a tyrosine kinase receptor, and the atrial natriuretic peptide receptor functions via guanylate cyclase activity, not through G-protein coupling.

Which of the Following Is a G-Protein Coupled Receptor