Figure 1.

Overview of ion channels present in cells. ATP-sensitive K⁺ channel (K_ATP); Ca²⁺-activated Cl⁻ channels (CaCCs); Ca²⁺-activated K⁺ channels (K_Ca); cystic fibrosis transmembrane conductance regulator (CFTR); endoplasmic reticulum (ER); epithelial Na⁺ channels (ENaC); inositol triphosphate (IP3); inositol triphosphate receptor (IP3R); interacting molecule (STIM); inward rectifier K⁺ channels (K_ir); Na⁺-H⁺ exchanger (NHE); Na⁺/Ca²⁺ exchanger (NCX); receptor-operated Ca²⁺ entry (ROCE); receptor-operated channels (ROCs); sarcoplasmic reticulum (SR); storage-operated Ca²⁺ entry (SOCE); store-operated channels (SOCs); transient receptor potential channels (TRPs); two pore K⁺ channels (K_2P); voltage-gated Ca²⁺ channels (VGCC); voltage-gated K⁺ channels (K_v).