| sAC | soluble adenylate cyclase |
| [Cl−]i | intracellular concentrations of chloride |
| [Ca2+]i | intracellular concentrations of calcium |
| [K+]i | intracellular concentrations of potassium |
| [Na+]i | intracellular concentrations of sodium |
| DIDS | 4,4′diisothiocyanatostilbene-2,2′-disulfonic acid disodium salt hydrate |
| Vm | membrane potential |
| cAMP | cyclic adenosine mono phosphate |