Outline of the G-protein-coupled receptors present on the β-cell
| Receptor Type | G-Protein | Effector Enzyme |
|---|---|---|
| Secretin, GLP-1, GIP | Gs | Adenylyl cyclase |
| Purinergic P1 | ||
| A1 | Go/Gi | Adenylyl cyclase |
| Purinergic P2Y | Go/Gi | Adenylyl cyclase |
| Muscarinic/cholinergic | Gq | Phospholipase C |
| Adrenergic | ||
| β2 | Gs | Adenylyl cyclase |
| α2 | Gi | Adenylyl cyclase |