| KCNH2 | --------PTRRLSLPGQL---GALTSQP->L<HRHGSDPG---------------------- | 1158 |
| KCNH1 | ---------------SQSP---QELFEISR>P<QSPESERDIFGA------------------ | 988 |
| KCNH3 | ------PPPSEEGAR-TGP---AEPVSQAE>A<TSTGEPPPGSGGLALPWDPHSLEMVLIGCH | 1068 |
| KCNH4 | ------PSPVPEASPPTPS---LLRHSFQS>R<SDTF-------------------------- | 1016 |
| KCNH5 | M------PLQVP--PQIPC---QDIFSVSR>P<ESPESDKDEIH------------------- | 987 |
| KCNH6 | --------P-CFSSLPEHL---GSVPKQLD>F<QRHGSDPGFAGSWG---------------- | 993 |
| KCNH7 | --------PIRHPSLPDSS---LSTVGIVG>L<HRHVSDPGLPG------------------- | 1195 |
| KCNH8 | SLHLVLPSRSEEGSFSQGT---VSSFSLEN>L<PGSWNQEGMASASTKPLENLPLEVVTS--- | 1095 |
| CNGA1 | ------------------------------>-<------------------------------ | |
| CNGA2 | ------------------------------>-<------------------------------ | |
| CNGA3 | ------------------------------>-<------------------------------ | |
| CNGA4 | ------------------------------>-<------------------------------ | |
| CNGB1 | -------------MSPGPEPGEQILSVKMP>E<EREE-KAE---------------------- | 1251 |
| CNGB3 | -------------MAPSAEGGEEVLTIEVK>E<KAKQ-------------------------- | 809 |
| HCN1 | -----------AAALPRES---SSVLNTD->P<-DAEKP-RFASN------------------ | 889 |
| HCN2 | -----------DSASPGAA---GG---LD->P<QDSARS-RLSSN------------------ | 888 |
| HCN3 | -----------EPATP-------------->-<---RGL-QLSAN------------------ | 773 |
| HCN4 | -----------LTAGPQRE---PG---AR->P<-EPVRS-KLPSN------------------ | 1202 |
| cons | > < | |