| Member Name | Chromosome Location | Protein Accession Number |
|---|---|---|
| KCNH1 | 1q32.2 | O95259 |
| KCNH2 | 7q36.1 | Q12809 |
| KCNH3 | 12q13 | Q9ULD8 |
| KCNH4 | 17q21.2 | Q9UQ05 |
| KCNH5 | 14q23.1 | Q8NCM2 |
| KCNH6 | 17q23.3 | Q9H252 |
| KCNH7 | 2q24.2 | Q9NS40 |
| KCNH8 | 3p24.3 | Q96L42 |
| CNGA1 | 4p12 | P29973 |
| CNGA2 | Xq27 | Q16280 |
| CNGA3 | 2q11.2 | Q16281 |
| CNGB3 | 8q21.3 | Q9NQW8 |
| CNGA4 | 11p15.4 | Q8IV77 |
| HCN1 | 5p12 | O60741 |
| HCN2 | 19p13.3 | Q9UL51 |
| HCN3 | 1q22 | Q9P1Z3 |
| HCN4 | 15q24.1 | Q9Y3Q4 |